bing tracking image
  1. Vehicle Suspension
  2. Timbren
  3. Jounce-Style Springs
  4. Rear Axle Suspension Enhancement
  5. Extra Heavy Duty
THIS ITEM IS NOT A FIT FOR
2022 Chevrolet Blazer

Timbren Rear Suspension Enhancement System

Item # TTORTUN4
Retail:$316.90
Our Price: $269.36
You Save: $47.54
Vehicle Suspension
Not Confirmed to Fit

2022 Chevrolet Blazer

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 6 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use. Great Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System part number TTORTUN4 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (5995)
  • Q & A (0)
  • Photos

Timbren Vehicle Suspension - TTORTUN4

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • Extra Heavy Duty
  • Timbren

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.


Features:

  • Improves suspension, handling and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride
    • Allows the leaf spring ample movement while cushioning light loads
    • Becomes more rigid as more weight is added
      • Increases stability - providing great performance while hauling heavy loads
      • Reduces vehicle sag
  • Works independently - side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension


Specs:

  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 6,000 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


An example of sag on a vehicle's rear axle under a heavy load

Whether you're hauling heavy loads in your bed or cargo area or you're towing a trailer, you will often see the rear of your vehicle sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but also more of the vehicle's weight. Because less weight is on the front axle, the front tires are making less contact with the road. Overall handling - traction, steering, and braking - is negatively affected. But the resistance from Timbren's Suspension Enhancement System works with your factory suspension to keep your vehicle level and improve your driving experience.


Diagram of the Timbren spring installed

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits, 1" above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride that you are used to.


Animation of a standard Timbren rubber spring

Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape increases resistance, stiffening the suspension and keeping your vehicle level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's side or passenger's side of your vehicle. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when you are hauling off-center loads.


An example of a trailers swaying

Because the vehicle handles better with the springs, less turbulence will be passed along to the trailer, and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi), because the movement from the trailer is not transferred to your vehicle. This also works to make the sway subside more quickly.


An empty truck on a bumpy road without Timbren

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.


Timbren Suspension Enhancement Compared to the Competition

Timbren's Suspension Enhancement Systems are much easier to install than air springs - there are no air hoses to run, no compressors or gauges to hook up, and no manual adjustments to make. The rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. And more elasticity allows for a more comfortable ride because the rubber has more travel.



TORTUN4 - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TTORTUN4 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Timbren Rear Suspension Enhancement System - TTORTUN4

Average Customer Rating:  4.7 out of 5 stars   (5995 Customer Reviews)

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

by:

The installation went well. My Ubolts were fairly new on my truck so the nuts loosened without any problems. I would recommend spraying the ubolt nuts with penetrant prior to installing this product on rusty or slightly rusty vehicles to avoid breaking the ubolt. I am sure this product will be helpful on my 1/2 ton pickup. I installed a pair on my previous 2500hd sierra and were in great condition after 8 years of towing and hauling wood, trailers, campers, etc. This is a great product to use bs. Adding a helper spring. Much softer ride until the truck is loaded. No rear rake is added either.

Shawn

7/5/2023

The timbren system is the way to go. The increased stability while towing is great. One of the greatest benefits of this system is that you enjoy a totally factory ride while unloaded and get instant stability when you hook up a trailer or load your pickup bed. Even when loaded or towing the ride is much better than my past vehicles that I added a leaf spring to. The add a leafs caused a harsher ride at all times where the timbren suspension does not. I highly suggest them.



by:

Modem skill required for installation , fit was perfect ,great help on maintaining vehicle handling with my car trailer on while traveling highway . I would recommend these to any hauling a trailer or frequent truck loads . only

Paul

6/29/2023

My thoughts remain the same on this product. Great help while towing loaded car trailer ,



by:

They definitely support and did lift my 2014 toyota tundra up about 1.5 inches.
This application with my weight has trunk riding on the cushions all the time.
That has teavel and bounce issues that do make some driving situations interesting.
I may go ahead and replace with airbags but for now support things well!



by:

The Timbren system has helped greatly while pulling my 5600 LB RV. It aids with the sag and my truck does not look like a "low-rider" while hauling the RV. It also appears to help with stability. I also haul a pontoon boat with my truck. At times with the lighter load it appears to be a little stiff; however I can live with that alright. I don't have to worry about airing it up as like other systems due to the spacing between the suspension and the frame. I would recommend this product to those who haul boats, RV's, or commercial loads. Very happy that I decided to purchase and install this product. Lastly, I did not install the system myself, but observed my mechanic friend as he helped out. It appeared that it is relatively simple to install.



by:
2018 Toyota Tundra

Bought these for my new 2018 Toyota Tundra. On my previous 2010 Tundra, I had installed helper springs and decided to try Timbren's this time around. I bought 1/2" spacers, since I did not want the truck to sag too much. Not sure if you can see in the pictures, but with the 1/2" spacers, the Timbren's come into contact approximately 1/2" to 3/4". They can be a bit rough and bouncy once they come into contact, but no rougher or uncomfortable than with helper springs. Over all I am very happy with how they perform. The installation was very easy. Took me about 1/2 to 3/4 of an hour. All you need is a 24" breaker bar, a ratchet wrench, and a 19mm deep socket. Unloosen the nuts enough to remove the existing bump stop and replace with the Timbren's. That's all it takes!



by:

These bump stops are great and very easy to install. They help keep my 2019 Tacoma leveled when towing my 5,000lbs trailer. I’m very happy and recommend them if you are planning to tow a trailer with your Tacoma. My only complaint is that sometimes when driving on old or uneven roads, they will make the ride very bumpy as if you had a sports suspension.



by:
Nissan Titan

I just wanted you to know that prior to my installation, this Coachman with a hitch weight of 700+ pounds would push the rear down so much that there was barely daylight between the tire and the wheel well...but look at us now. This '04 Titan with 189,000 miles and original suspension is riding high. Your product helped me get the bed level and has reduced the sway on the trailer so much that it is hardly noticeable. I am very happy with my purchase, your follow-up and the results.



by:
Toyota Tacoma

I've had these on my '16 Tacoma for a year now. When the truck bed is empty, the ride is harsher than before, but not intolerable. When I'm loaded up for hunting (lots of heavy gear, maybe an elk, plus towing a pop-up camper), it's perfect--never bottoms out like it used to. I keep 120 lbs. of sand back there all winter for added traction in the snow, and that helps to smooth out the ride a bit. This photo with sagging rear was BEFORE the Timbrens--now it rides level.



by:

20 min install tops. Took more time retorquing the nuts after loading. Couple tips: only remove the two rear nuts on each u bolt to slip out the old bump stop to replace with the timbren. Go ahead and spray those nuts with pb blaster or wd 40 to help ease removal. I used a breaker bar so it was no problem. I would suggest that once you have the timbrens in place, I would jack up the rear under the receiver hitch (I used wood blocks) and slip your socket and extension back into the bump stop to retorque the 17mm bolt. I also went ahead and retorqed the nuts once I hooked up trailer. As far as towing now, wow what a difference. Virtually eliminated all front axle hop from road dips making for a much more confident and stable ride. 26' coach, 4900# dry. Pics are unloaded and then loaded.



by:

This is an amazing product. Took about 30 minutes total to install on my Toyota Tundra. That includes setting up and clean up. I pull a 20 foot flat bed trailer and a 30 foot travel trailer. This product really helps me when I do encounter bumps and uneven lanes. Helps keep my rig secure on the road and doesn’t interfere with normal everyday ride. I would definitely buy this product again and I most certainly would purchase from etrailer again. Great company, support and prices!



by:
Toyota Tundra

Just finished installing the TTORTUN4 Suspension kit on my Tundra. It took me, with limited mechanical ability, about an hour to install and was a simple and easy installation. My truck loaded with tools, a construction canopy, and heavy bed-slide sits up in the back like its unloaded, rides great, and handles so much better! I'm super pleased! Thanks so much!



by:

These are great! Dont change the ride at all when not in use and make towing my 7000lbs trailer so much more comfortable! Tow with confidence. Easy install took ten minutes with my buddy's lift. Could have been done easily on the ground too. Improves handling and ride when towing



by:
2017 Toyota Tundra

UPS lost the box, but one e-mail to etrailer and another was on its way. Installed easily and is performing just as I'd hoped. Truck is more level and the ride is a little stiffer so towing is much better.



by:
2021 Toyota Tundra

Easy installation great product



by:

A great upgrade. I would recommend if anyone is towing regularly or heavy.



by:
Toyota Tundra

I love my Timbrens! After a year of driving my Toyota Tundra 8 footbed with Timbrens under the rear, I can attest to the support they give. The rear no longer sags under heavy loads and my truck handles excellent with firewood and tools driving over the rough roads of the Adirondacks. When I turn, the truck doesn’t sway. They give me peace of mind when I’m driving which to me is invaluable. Timbrens were recommended to me over airbags for the harsh cold climate we have up north here and I love their simple design, quick installation, and no maintenance. I will be installing another pair in the front to haul a truck camper. I recommend them to anyone who regularly hauls a lot of weight.

Bobby T.

6/11/2021

Timbrens remain a great improvement on my ride quality hauling and towing heavy loads on a daily basis.



by:
2008 Toyota Tundra

Purchased for a 2008 5.7 l Toyota Tundra. As advertised. Installed in one hour. Performed as described with an unload bed- slightly stiffer with less recoil over rough roads. Hitched the fifth wheel to the Tundra and took a one hour trip over varying road conditions. Performed exactly as I hoped. Couldn't be happier. ETrailer processed the order on the same day and I received it on the afternoon of the third day. Could not be more pleased.

Thomas T.

12/12/2014

Thank you for your follow up inquire on the Timbren suspension parts for my 2008 Tundra. I used the vehicle for the past year to tow a Heartland fifth wheel. The parts worked as advertised and I have been happy up til I sold the Tundra. The service I received at Etrailer led me to purchase towing base plate and bar for my dinghy on our next RV. Its a pleasure dealing with Etrailer!



by:

These worked awesome. I tow a 4k lb. camping trailer about 4 times a year from Arizona to the California coast. They minimized the sag and made the truck control the trailer much better. Initially I was afraid they would make the ride too stiff, but they actually made bump compliance much better. They were easy to install and probably a better value over airbags if you don't tow a lot. I'm happy.

John C.

7/28/2015

Still love em. Ive recommended them to a few friends.



by:

Installed a SES part #TTORTUN4 on a stock 2019 Tacoma, 4x4 offroad, 4-door, long-bed. The SES have been through one northern Illinois winter and driven 15,000 miles over 9 months.

The SES is a five-star product. The ride comfort of the suspension is almost unchanged with an unloaded truck. The truck ride is a little stiffer and can be noticed on bumpier roads. The ride change would be comparable to adding 5-7 psig in the tires. The suspension performance is immediately improved. The truck does not roll on exit ramps and has less forward nose dive rocking motion when stopping.

The SES suspension towing performance is significantly improved over stock. With 300 lbs of sand bags in the truck bed and a 4x10 utility trailer loaded with an ATV. The truck and trailer is much more stable in the wind and does not roll in the curves. The truck remains level and does not let the trailer nose dive when braking. The trailer has does not fishtail in the wind or during lane changes.

The SES suspension has only been offroad a few times. The truck does ride slightly rougher in the bumpy trails or potholes. This truck does not have a lot of offroad time to really assess the offroad performance.

The installation was less than 1 hour. It is recommended to apply a little penetration oil on the suspension U-bolts and clean the threads up with a wire brush. Especially if you live in Illinois where salt is applied to the winter roads. A good impact drill, 11/16” deep socket and a breaker bar. Also check out the E-Trailer installation videos.

Here is some measurements before and after the installation. With the SES installed on the truck bed as measured from the wheel well to the ground was ¼” higher than stock. This does not sound like a lot but aesthetically it made the truck look level. With the truck loaded with 300lbs of sand, utility trailer and ATV the stock truck sagged 1-1/4” verses the SES only 3/8”. The SES improves both the ride height, performance and aesthetics of the truck when loaded.

The Tacoma and SES has traveled unloaded, with a full bed, towed utility trailer, tandem axel U-Haul trailers and a 20’ Jon boat. For the type of driving I do this SES suspension is an awesome upgrade and well worth the money and time to install. Five stars all the way.



by:
Toyota Tundra

My last Tundra had Firestone air bags with separate air lines (also purchased from Etrailer). They worked great but I always had to adjust pressure for loaded vs unloaded and assure the pressures were even.

These are so much better. Stock smooth ride unloaded and I don't have to do a thing when I load the bed or add a trailer behind it. I towed a 24 foot 14K pound equipment trailer with two side by sides and two atv's on it from NE GA to northern TN and had no worries what so ever.
I would highly recommend them!



by:
2019 Toyota Tacoma

Super easy install, took less then 30 min. Great for towing our small trailer and hauling bikes.



by:
2008 Nissan Titan

Product was shipped fast . Only took me 15 minutes to install. Can’t wait to try it out. Should make for easier towing. Thanks etrailer



by:

Easy install. Just completed the install. Total 45 minutes. Looking forward to testing these out with my camper.



by:

Easy installation. The truck sits well and feels better on the road



by:
2017 Toyota Tacoma

Great product and very easy to install. I haven’t loaded the truck yet but I’m sure it will do just fine. Here’s a before and after, total install time 30 minutes.


25
3718
Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • 5th Wheel Trailer Hitch Install Kit and Helper Springs for a 2015 Toyota Tundra with 5-1/2 Foot Bed
    It sounds like your 2015 Toyota Tundra has the very short 5-1/2 foot bed. There is an installation kit you can use, # RP50084-58. For a bed this short you would have to get a fixed 5th wheel hitch and use a Sidewinder pin box in place of the factory pin box on the trailer. A Sidewinder will move the pivot point back 22 inches giving you more clearance between the truck and trailer when making tight turns. I have included a link to our help article on Sidewinders for you to view. Sidewinders...
    view full answer...
  • SumoSprings or Timbren Suspension Enhancement For a 2017 Toyota Tacoma Pulling Car Hauler Trailer
    I recommend the Timbren Rear Suspension Enhancement System # TTORTUN4 over the SumoSprings Solo Custom Helper Springs # SSR-612-47 for your 2017 Toyota Tacoma TRD Sport. The Timbrens have a much higher weight capacity at 6,000lbs versus the SumoSprings at 1,000lbs. This will give you a better ride level and stabilization when you are towing your car hauler. A Equal-i-zer Weight Distribution System # EQ37100ET may be a better option if you only need the suspension enhancement when you are...
    view full answer...
  • Rear Suspension Enhancement Recommendation for 2020 Toyota Tundra
    We do have the Timbren kit part # TTORTUN4 that is a fit for your 2020 Toyota Tundra which will give you an additional 6,000 lbs of suspension support. We don't have any kits that would provide more support but if we did it would probably cause your ride quality to be harsher than you'd like. For the ultimate in rear suspension support the RAS system part # RAS34FR is the way to go. This gives you the support you are wanting and actually improves the ride quality loaded and unloaded so...
    view full answer...
  • Recommended Timbrens for a 2018 Toyota Tundra with 3 Inch Lift Kit
    For your 2018 Toyota Tundra, I recommend using the Timbren Rear Suspension Enhancement System part # TTORTUN4 with three of the Timbren Spacer For Raised Frame Vehicles part # TA25723-90AD00 stacked. Assuming you have a full 3" suspension lift and not a body lift, this option should give you 1/2"-1" of clearance but the spring measures 3-3/4" tall so you can can always measure to be certain. Please keep in mind you will need to obtain longer M10 bolts from your local hardware store to install...
    view full answer...
  • Suspension Enhancement Recommendation for 2016 Toyota Tundra with In-Bed Hitch
    While we've had customers come back and say they were able to install the Firestone kit part # F2445 in a 2016 Toyota Tundra with an in-bed gooseneck hitch we do not recommend this since Firestone does not. Best option would be a Timbren kit like # TTORTUN4 which gives you the same support but is compatible with an in-bed hitch. It also allows you to not have to worry about running air lines or maintaining air pressure in the bags.
    view full answer...
  • Suspension Enhancement Recommendation for 2016 Toyota Tundra with In-Bed Hitch
    Air Lift states that you can not use their LoadLifter 5000 # AL88299 with a truck like your 2016 Toyota Tundra that has an in bed hitch. Because of that you'd have to use the Timbren part # TTORTUN4 which fits your truck and is compatible with an in-bed hitch.
    view full answer...
  • Does Timbren SES TTORTUN4 Fit a 2001 Toyota Tundra TRD
    The Timbren suspension enhancement part # TTORTUN4 is a confirmed fit for your 2001 Toyota Tundra TRD. It would fit just fine and work well to provide you with additional suspension support when towing or carrying heavy cargo.
    view full answer...
  • Transmission/Oil Cooler Combination Kit Recommendation for a 2008 Toyota Tundra
    We do sell combination oil/transmission coolers. Check out the Derale Combination Transmission and Engine Oil Cooler # D15902. This is a single unit that has two sections, one for cooling transmission fluid and the other for cooling engine oil. I did some checking and this cooler does come with a fitting that is compatible with the oil filter on your 2008 Toyota Tundra so it should work very well for you. The kit does come with generic installation instructions that will detail how to...
    view full answer...
  • Suspension Enhancement Recommendation for 2008 Toyota Tundra
    We have just what you would need. The Timbrens like part # TTORTUN4 will give you additional suspension support without the hassle of dealing with air bags but they do have a reputation as being somewhat harsh. What we have found is the SumoSprings like part # SSR-610-40 give you the easy, maintenance free support without the harshness associated with the Timbrens. This would be our recommendation.
    view full answer...
  • Will a Gooseneck Trailer Hitch in a 2008 Toyota Tundra fit with Air Ride 5000 Air Springs
    Whether you can use a gooseneck hitch with Air Lift 5000 air springs # AL88299 will have to be determined on a case-by-case basis by looking at the instructions for each hitch. The Blue Ox Gooseneck for the 2008 Tundra # DH1400 is not compatible with Air Lift 5000 air springs # AL88299 since they share the same mounting point on the lower frame rail. Another option is the Timbren Rear Suspension Enhancement System # TTORTUN4. These springs will not interfere with the Blue Ox Gooseneck...
    view full answer...
  • Can Firestone Ride-Rite System Work With Companion 5Th Wheel System On 2010 Toyota Tundra
    I do have a solution for a suspension enhancement for your 2010 Toyota Tundra, but the Firestone Ride-Rite, part # F2445 will unfortunately not work due to the Companion installation. I recommend the Timbren Vehicle Suspension, part # TTORTUN4 for your truck. These do not effect the ride of your Tundra when it is empty. Since they work independently, they help compensate for off-center loads. Another nice feature is the easy-install for this system. They simply replace the bump stops...
    view full answer...
  • Recommended Suspension Enhancement For 2008 Toyota Tundra SR5
    I would normally recommend using an air bag suspension enhancement for your truck but since you said you are planning on towing a fifth wheel trailer the air suspension kits we offer are not compatible with a fifth wheel hitch and I recommend going with a system like the Timbren Rear Suspension Enhancement System, part # TTORTUN4. This system not only increases your stability, it helps reduce sag as you described. Because they are independent of each other, they help stabilize your truck...
    view full answer...
  • Will Timbren # TTORTUN4 Fit a 2006 Toyota Tundra with a Spacer Block Between Leaf Springs and Axle
    Since the spring attaches to the top of your leaf spring stack and your spacer is under the leaf spring stack, the Timbren Rear Suspension Enhancement System # TTORTUN4 will fit just fine on your 2006 Toyota Tundra. If the spacer was between where the system would install and the frame or if you had flipped your axle so that it was on top of your leaf springs then that would be a different story. Please note that any suspension enhancement is designed to work with a suspension system...
    view full answer...
  • Suspension Enhancement Recommendation for 2000 Toyota Tundra that Bottoms Out
    I really like the Timbren setups like the part # TTORTUN4 that you referenced. This will replace your bump stops and provide you with 6,000 lbs more of suspension support. That means your truck isn't going to bottom out when you are loaded. I like these kits over air bags as you don't ever have to mess with inflating bags or worrying about air leaks.
    view full answer...
  • Recommended Timbren Suspension Enhancements for a 2017 Toyota Tacoma with 4 Leaf Springs
    The Timbren Rear Suspension Enhancement System part # TTORTUN4L is designed to work with the 3 leaf setup on a 2017 Toyota Tacoma, but not the 4 leaf setup. For a 4 leaf setup you would need to use the Timbren Rear Suspension Enhancement System part # TTORTUN4. The jounce spring kit designed to work with 4 leaf spring models has a shorter mounting brackets to allow for the recommended 1/2" - 1" of space between the bump stop and rear axle. Although both jounce springs are the same, you...
    view full answer...
  • Differences Between Timbren Suspension Enhancement TTORTUN4 and TTOFTUN4, 2010 Toyota Tundra
    Basically, the Timbren Springs you have referenced, # TTOFTUN4, are for the front suspension. The 6,000 pound system, # TTORTUN4, is for the rear suspension. Installing Timbren suspension enhancement will have very little to no effect on the unloaded ride quality. I have included links to the installation details for both sets for you.
    view full answer...
  • Timbren Spacers For Ensuring Proper Air Gap When Installed On a Lifted 2016 Toyota Tundra
    The Timbren 1" Spacer # A25723-90AH00 is designed to be used with vehicles that have a lifted suspension so that the Timbren Rear Suspension Enhancement System # TTORTUN4 on your 2016 Toyota Tundra has the proper 1/2" to 1-1/2" gap when the suspension system is sitting at ride height with no additional weight on the rear end. Without this gap the rear suspension will be more stiff when not hauling an additional load and with a larger gap the springs will not engage when they are supposed...
    view full answer...
  • Recommended Suspension Enhancement System For 2015 Toyota Tacoma
    The Timbren Rear Suspension Enhancement System, part # TTORTUN4 is designed to fit your 2015 Tacoma as long as it is not the Pre-Runner model. This system is designed to replace the bump stops you have on your truck. There should be about 1/2 to 1/1/2 inches of clearance from the bottom of the Timbren spring and the axle when there is no load on the truck. This system is intended to be used with a suspension system thqat is in good working condition. Using a suspension enhancement system...
    view full answer...
  • Will Timbren Suspension Enhancement System Fit with 5th Wheel Bracket Kit on 2013 Toyota Tundra
    Comparing the install details of the Timbren system, part # TTORTUN4, with a custom fifth wheel bracket kit for your 2013 Toyota Tundra, like part # RP50084-58, it looks like you're going to be just fine. The Timbrens install directly over the axle and the brackets for the fifth wheel kit are not in the way at all.
    view full answer...
  • Is it Normal to Have a Gap Between Timbren and Vehicle Frame Unloaded
    Yes, having a gap between the Timbren and the trailer frame allows the suspension to operate without any harshness when the vehicle is unloaded. The when the vehicle has the weight of cargo in it that gap will go away and the Timbren will be there to provide additional support.
    view full answer...
  • Which Rear Suspension Enhancement For 2012 Toyota Tundra Is Compatible With Spacers?
    I have another option for you, but you cannot add any spacers to the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-610-47 you were looking at for your 2012 Toyota Tundra. Instead I recommend the Timbren Rear Suspension Enhancement System # TTORTUN4 which is compatible with the Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing # A25723-90AH00. With the Timbren system you want the distance between the spring and the frame to be 1/2" - 1-1/2" so you will need to add spacers...
    view full answer...
  • Weight Distribution Recommendation for Trailer that Weighs 5,000 lb Dry
    With how heavy your trailer is a weight distribution system is a really good idea. The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle...
    view full answer...
  • Are Timbren Suspension Enhancement a Good Option for 2019 Toyota Tundra When Towing
    The Timbren Rear Suspension Enhancement System # TTORTUN4 isn't just a good option for your 2019 Toyota Tundra, it is a great option because they will improve your truck's handling and performance, offering your suspension the support it needs when you tow or have a heavy load. How they work is pretty simple, but extremely effective. When you are towing or you have a load in the bed of your truck, that weight causes the rear end to sag; the rear of your truck will be disproportionately...
    view full answer...
    Image 1 for
  • 2015 Toyota Tundra U-bolt Torque Specs for Timbren Helper Spring Installation
    Most hardware will have a range of torque specs they can accept but usually not as wide as 73 to 125 foot pounds. There does seem to be a lot of different information out there so to filter out the bad information the best solution is to contact a Toyota dealer, speak with a technician in the service department, and ask what the Toyota torque specs are for the suspension u-bolts. On a 2008 Tundra it is 74 foot pounds. For me, between 74 and 100 would be correct but what you could do is...
    view full answer...


< Previous
123. . .8



Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Brandon M
Expert Research:
Brandon M
Employee Adam R
Expert Research:
Adam R
Employee Lori W
Expert Research:
Lori W
Employee Rachael H
Expert Research:
Rachael H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Robert C
Installed by:
Robert C
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Carrie F
Updated by:
Carrie F
Employee Bethann B
Updated by:
Bethann B
Employee Zach D
Video by:
Zach D
Employee Jonathan Y
Video by:
Jonathan Y
Employee Brent H
Test Fit:
Brent H

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.