Timbren Rear Suspension Enhancement System
(5981 reviews)
Price: $269.36
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Timbren Rear Suspension Enhancement System
Item # TJRJK
Retail:$316.90
Our Price: $269.36
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2022 Jeep Wrangler Unlimited - Timbren Rear Suspension Enhancement System
- Jounce-Style Springs
- Rear Axle Suspension Enhancement
- Standard Duty
- Timbren
2,400-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your Jeep Wrangler Unlimited. 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 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 's suspension
Specs:
- Includes: 2 Aeon hollow rubber springs and -specific hardware for simple installation
- Replaces axle bump stops on frame
- No drilling required
- Capacity: 2,400 lbs
- Do not exceed the 's weight-carrying capacity
- Designed to work with a suspension system that is in good working order
- Limited lifetime warranty - satisfaction guarantee
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 level and improve your driving experience.
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.
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.
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.
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.
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.
JRJK - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren
Installation Details
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Product did not meet expectations
Customer Reviews
Timbren Rear Suspension Enhancement System - TJRJK
Average Customer Rating: 4.7 out of 5 stars (5978 Customer Reviews)
2,400-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: SteveNH05/14/2021
2020 Jeep Wrangler
Disappointed. Not in the quality of Timbren's, but in fitment with this particular vehicle. As you can see in the attached picture, there is a 2" space between the Timbren's and the point of contact. 2" is way too much to have to sag or drop in order to even begin to have an opportunity to function. I want it to be known that I am a big fan and buyer of Timbren's, and even have them front and rear on my class c motorhome. In my opinion, a Timbren should only have a 1/2" to maximum of 1" space before coming into contact. Also because of the design, there is no option of being able to use 1/2" or 1" spacers readily available here on etrailer, which I have used with other Timbren vehicle applications. As far as installation, they were the easiest Timbren's I have ever installed. The existing bump stops came out by hand and without using tools. The new Timbren's were pushed into place by jacking up the back of the vehicle and putting a 3" block of wood in between the Timbren and the axle and then lowering the jack and in doing so, pushing the Timbren into place. 10 minute job! Now all I have to do is to figure out a way to design a 1" or 1 1/2" block or spacer to close the gap between the Timbren and point of contact. If I come up with a solution, I will update this review to help out other Jeep owners with this issue.
by: Bill 04/13/2023
Jeep Wrangler
Used on a Wrangler to tow a Humvee trailer (1101) in conjunction with Uncle Emu rear springs, and had no problems. The install was a little problematic, removed the tires for access to area, and ended up twisting them in place.
by: Bridge06/24/2019
These bump stops were shockingly easy to install and they made a huge difference towing my little travel trailer. Finding a 2x4 the right height to press the chock into the receiver cup took the most time. The stock Jeep bump stops we’re easy to pry out.
by: Jim06/08/2021
2017 Jeep Wrangler Unlimited
etrailer has never failed in service or quality of their products!!!
by: Tracy07/15/2019
My JEEP is not used HARD off road. Took the Lean out of the cab on street turns
by: Jon A.08/05/2016
2015 Jeep Wrangler Unlimited
The bump stops worked better than expected.
by: William J.02/18/2016
Item was as described and arrived on time. The part was very easy to install, less than an hour.
by: Barry 11/04/2023
2014 Jeep Wrangler Unlimited
by: Steve 02/17/2021
Always the right products, as expected and on time
by: Just M02/09/2021
by: Bobby 02/13/2024
2024 Jeep Wrangler Unlimited
by: Bill 04/02/2021
by: John Z04/19/2023
I know it will be lovely when loaded or the trailer on. However,it rides like a wagon empty with brand new premium shocks and struts empty. Thud thud thud. You really cannot feel the shocks or suspension. Found exact same item plentiful for 60 bucks on eBay after I bought these for 250. I may cut these in half or put air bag on. I do not like the ride empty. No hard feelings. It is a good product maybe just not for me.
by: Shaughn10/21/2022
About a 1/2 inch difference in gap at the bump stop perch but still within parameters. Truck sits perfect with trailer attached. Haven’t towed yet. After towing if they perform like they should will upgrade to a 5 star. Easy to install, definitely needed 2x4 and jack. 2011 Silverado ext cab with 30 ft Genisis 5th wheel.
by: Michael03/12/2023
Was able to install these with a 15mm flex head ratchet wrench and lifted the rear of the truck to make it easier. 30 minutes to take off 4 nuts and put em back on. 2 minutes assembling the timbrens with the added spacer. I have a f350 with a salter and plow. Loaded with salt the lights shoot up and in the snow ?? it’s like hitting hyper drive and you’re blinded. These helped big time. Very happy so far.
by: Paul10/20/2022
Haven’t had it on long, but so far so good. 1999 F350 dually. Bolted up nicely. Total job took 10 minutes. Have hauled two gooseneck loads of hay and truck drives SO much better. Nice and level. Money well spent so far.
by: Tim03/17/2023
The pro: The longer, heavier bump stops worked great when hauling my mustang home from Chicago. The truck stayed level and handled great.
The con: I had to remove the bump stops for everyday use. They limited my suspension travel causing a stiffer ride.
by: OmarG03/08/2023
I am so glad I bought these for my truck. I was able to install them myself using a jack and jackstands. The ride is bit rougher now; but the suspension is totally awesome compared to before. I am able to haul a bit more weight when needed.
by: Francis02/20/2023
very good product ,received just in time and fit perfectly on my GMC savana 2000 .Be sure to clean the two receptacle thats help.
très bon produit , reçu dans les délais et s'ajuste parfaitement . Assurez-vous de nettoyer le receptacle cela facilite l'installation.
by: Jeffery08/03/2022
The timbrens actually did what they were suppose to do. However, once I starter driving out west I notice the timbrens were riding on the axle which cause the speedometer to jump around depending on the road. I would recommend them if you are hauling or towing a camper or RV. I was going to contact etrailer about maybe removing a spacer for one set however the other set came as one unit. The bottom line is the Timbrens does stabilize your load for safe travels. I will be contacting etrailer soon to assist in correcting the problem...Road trip from Idaho,Colorado,Wyoming,and Utah were beautiful... Thank you etrailer
by: Raymond04/04/2024
Definitely a must have when towing..stiff without a load but night and day difference while towing my travel trailer, better traction, steering and braking. Easy quick install..only issue I had was with the long bolts they sent with the spacer kit (optional for lift) the bolt diameter was too wide to fit through the holes on the bracket..but a trip to the local hardware store took care of that.
by: Jesse03/20/2024
Pros: Cheaper and easier to install than airbags, do the job when load is enough to compress the shock, with added weight or towing, then it stiffens the rear very nicely.
Cons: Doesn't do anything until there is 2-3cm of compressed shock. It sits above the contact point, doesn't touch. Under normal driving, there is no benefit/improved stiffness/anti sway in rear or a leveling of the factory rear sag in a 2022 or newer Toyota Tundra.
If had it to do over, would have put some kind of spacer in between product and upper included bracket, the supplied bolt is long enough to accommodate, to eliminate the gap, and lift the rear 1-2 cm. Should do it anyway, maybe when swapping to summer wheels next month.
by: Little Doc11/29/2022
I’d seen similar products rated in the 4,000 lb ratings but I went with these. I’m not a mechanic but I removed the factory bump stops and installed both these in 30 minutes or less. I used my rolling jack and lifted from the drop hitch and easily removed the old ones and soapy water and 1/4 twist and these were on. Placed a block of wood in the space between these coils and lowered the jacks then pressed it with my tractor to confirm full engagement. I carry a lot of tools on a 2020 Chevy 2500 I do feel a bit of butt bounce on large bumps but other than that I’m very pleased.
by: Phil 04/18/2023
The order with Will at etrailer was great. He was very helpful and knowledgeable, Installation was not easy but not too bad, The hardest part was removing the factory pieces I removed them from below which was a blind nut removal operation. This is on a 2017 Mercedes Sprinter motorhome. After removal of the factory pieces I discovered that access is much easier on top between the tire and the mud flap, I turned the front wheels inward and they didn't have to be removed. The front of the motorhome had to be raised quite a bit to get the Timbren piece jnserted. Also I learned to tighten the bolt and nut in the Timbren bumper as much as possible before installation because there is no access to the bolt head when tightening the top nut to keep the bolt from turning, preventing tightening the nut.
by: Mark05/09/2024
First off the product was beat up with paint/power coating missing in several places on both. I was putting on a brand new truck with less than 800 miles on it so I elected to touch up before install. I’ve hear a lot about Timbren but never had them. I had airbags on my F350 but when I switched to a new Tundra I went with Timbrens. I’m a bit disappointed in the ride. Feels like I can feel a “bump” in the truck from the rubber pick hitting the axle when I go on a bumpy road. Thinking I should have went with airbags. As far as having a load on the truck and helping with the squat, they do as they are advertised.
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See what our Experts say about this Timbren Vehicle Suspension
- Correct Airbags for a 2017 Jeep Wrangler Unlimited With LiftI do have an option for you but airbags won't be one if the lift uses aftermarket coil springs. The only option for a 2017 Jeep Wrangler Unlimited lifted would be the Timbren Rear Suspension Enhancement System part # TJRJK which will require spacers equal to the lift, part # A25723-90AH00.
view full answer... - How to Determine Timbren Helper Spring Fit for 2017 Jeep Wrangler JK With 3 inch LiftBecause the # TJRJK is a friction fit into the factory cup where the bump stop fits, a spacer wouldn't work.. If you can provide me a measurement, they might have a fit. They'll need the height difference between the underside of the frame and the top of the rear axle while the vehicle is sitting on the ground. If you can reply with that information, I can check back with Timbren to see if they have a solution for you.
view full answer... - Will Coil Spring Air Bags Work On a Lifted 2013 Jeep Wrangler UnlimitedIn order to help provide rear end support on a 2013 Jeep Wrangler Unlimited while towing you have a few options. That said, these options are all designed for the factory suspension. Therefore, if you have aftermarket coil springs there is no way for us to confirm fit for a set of air bags which install inside the coil springs. The only option we have to provide support is the Timbren Rear Suspension Enhancement System part # TJRJK because you can add multiples of the Timbren Spacers...
view full answer... - Could Curt Triflex Replace Curt Venturer In 2015 Jeep Wrangler UnlimitedYes a proportional Curt controller like the part # C24VV could easily replace a # C74VV. It would be just a matter of unplugging the old controller and plugging in the new one. For suspension enhancement I would go with the Timbren kit part # TJRJK instead of an air bag kit because maintaining air pressure in bags can be a bit of a hassle and the Timbrens get installed and you never have to think about them again.
view full answer... - What is the Difference Between the 2 Timbren Suspension Enhancements for a 2013 Jeep WranglerIt sounds like you already have the Timbren Front or Rear Suspension Enhancement System, part # TJFTJ, installed on the front axle of your 2013 Jeep Wrangler. This installs within the springs you already have. However, the Rear Suspension Enhancement System, part # TJRJK, is only for the rear. It also replaces the bump stops alongside the springs on the rear, not within them. This is the one for your rear since you already have the others on the front. I've linked to a video installation...
view full answer... - Does Timbren Kit for 2015 Jeep Wrangler Unlimited Come with Install InstructionsThe part # TJRJK that you referenced does come with installation instructions. I attached a picture that shows the instructions for you to check out. Basically you just pry out the old bump stop with a pry bar and press the Timbren in place of it. This will give you additional suspension support at the rear of your 2015 Jeep Wrangler Unlimited when towing.
view full answer...
- Best Timbren Suspension Enhancement For 2024 Jeep Wrangler 4xeThe best Timbrens for your 2024 Jeep Wrangler 4xe are the following: - Timbren Suspension Enhancement System - Rear Axle # TJRJK The Timbrens are a really nice choice because of how much they will help your Jeep's handling when you are towing or even just have a heavy load. The reason why is the Timbrens take the brunt of that added weight, engaging when needed to counteract sag and body roll, helping level your truck, stabilize it, and combat sway. Additionally, Timbrens do not require...
view full answer... - Timbren Suspension Enhancement Recommendation for 2017 Jeep Wrangler with 2 inch LiftThe Timbren kit part # TJRJK that you referenced is the correct kit for your 2017 Jeep Wrangler, but since you have a 2 inch lift you'll also need to use spacers to take up the additional space created by the lift. For that you'd want the # A25723-90AH00 for each inch of lift. So you'd need a quantity of 4 since you have 2 inches of lift per side of vehicle. I attached an install video for the Timbren for you to check out as well.
view full answer... - Recommended Enhancement For a 2021 Jeep Wrangler Unlimited 4xe Rubicon That Sags When Trailer TowingWhen dealing with sag from a trailer I recommend using the Equal-i-zer Weight Distribution System # EQ37060ET which is rated for a trailer with a tongue weight of 200-600lbs and a total trailer weight under 6,000lbs. This will help you to level your 2021 Jeep Wrangler Unlimited Rubicon 4xe and will give you sway control to keep the travel trailer tracking straight behind you while towing. You will need the 1-7/8" 12pt Thin Walled Socket # ALL643216 to install the included hitch ball. The...
view full answer... - Recommended Suspension Enhancement Option With Most Support for 2007 Jeep WranglerThe Timbren Rear Suspension Enhancement System part # TJRJK is an excellent option for a 2007 Jeep Wrangler. In fact, there are few others that will provide the level of support that they do. In regards to sag, the spring will sit around 1/2"-1" away from the contact point so the Jeep will sag around this plus 1/4"-1/2" for the weight of the trailer and gear. That said, these are just estimates but you should not have much sag at all with the Timbrens and they are really the best option...
view full answer... - Suspension Enhancement Recommendation for 2017 Jeep Wrangler with 4 inch Suspension LiftThe only suspension enhancement we can recommend for your 2017 Jeep Wrangler Unlimited is the Timbren kit part # TJRJK with the spacers # A25723-90AH00. Since you have a 4 inch lift you'd need a total of 8 of the spacers. There isn't a confirmed Air Lift solution we can provide.
view full answer... - Comparison Of Timbren Rear Suspension Enhancement System vs SumoSprings Solo Custom Helper SpringsBoth are great jounce-style systems that have similar functions. The Timbren Rear Suspension Enhancement System, Item # TJRJK, is designed to provide support and stability with vehicles that are carrying heavy loads. The Timbrens are a stiffer spring that are really designed for heavy lifting often associated with trucks and their loads and so they will be a "rougher" ride in your 2009 Jeep Wrangler Unlimited Rubicon. In contrast, the SumoSprings Solo Custom Helper Springs, Item # SSR-401-47,...
view full answer... - Actual Dimensions of Timbren SES Jounce Springs in Kit TJRJKTimbren rear suspension jounce spring kit # TJRJK is a confirmed fit on the 2014 Jeep Wrangler Unlimited 4WD. I went to our warehouse to measure these springs for you and found their overall end to end length is 4-1/4-inches and the diameter is 2-1/2-inches.
view full answer... - Suspension Enhancement for 2014 Jeep Wrangler for Towing Heavy TrailerSuspension enhancement for your 2014 Jeep Wrangler like the Timbren # TJRJK that is a confirmed fit will do a great job giving you additional suspension support for towing up to the capacity for your vehicle but you should note that it does not allow you to tow beyond what your vehicle was rated for as there are other factors like braking, frame strength, cooling capacity, transmission rating, engine rating etc. This is why suspension enhancement while proving additional suspension support...
view full answer... - Suspension Enhancement For 2016 Jeep Wrangler With 4 Inch LiftWhile there is a suspension enhancement option, there are no air spring kits due to the height of the spring, but if your 2016 Jeep Wrangler is a 4WD version, what you can use are Timbrens, along with 1 inch spacers: - Timbren Rear Suspension Enhancement System # TJRJK - Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing # A25723-90AH00 You would need a total of 8 spacers (4 on each side)
view full answer... - Recommended Timbren Rear Suspension Enhancement for 2015 Jeep Wrangler Unlimited with 4We have spacers that you can add to accommodate a 4" lift on your 2015 Jeep Wrangler Unlimited, but there are no Timbren kits available that come preset for a 4" lift. If your Wrangler Unlimited is a 4WD then I recommend going with the Timbren Rear Suspension Enhancement System # TJRJK. If you have a 2WD then you will want the part # TABSJRJK instead. You can accommodate your lift by choosing a combination of the following spacers for raised frame vehicles: 3/8" Bushing 1/2" Spacer -...
view full answer... - Will the Timbrens for a 2012 Jeep Wrangler Increase Towing Capacity The Timbren Rear Suspension Enhancement System part # TJRJK is an excellent option for a 2012 Jeep Wrangler. It will help when towing or hauling heavy loads so you don't have excess rear end sag which leads to issues with braking, stability, etc. I will however say that they won't increase towing capacity nor is there really any product that can do this. I must recommend you tow inside your vehicle's capacities but using these Timrbens will increase performance in doing so.
view full answer... - What Is Needed To Tow a Trailer With a 2015 Jeep Wrangler UnlimitedAccording to the owner's manual for your 2015 Jeep Wrangler Unlimited, the towing capacity can range from 2,000 lbs to 3,500 lbs. The components that you listed (transmission cooler/upgraded suspension components) will certainly improve your towing experience however, in the eyes of the manufacturer the towing capacity will remain unchanged for the life of the vehicle no matter what parts are added. The other issue you are going to run into is that they do not make a trailer hitch for your...
view full answer... - Recommended Suspension Improvement for a Jeep Wrangler When Towing a TrailerBoth the Timbren # TJRJK and the SumoSprings # CSS-1195R will help with sag and stability while towing. However, they will affect the ride when no towing as well. The Firestone Coil-Rite Air Helper Springs # F4173 are adjustable from 35 psi all the way down to 5 psi. This will give them up to 1,000 pounds of load-leveling capacity when filled, and then feel basically nonexistent when deflated. If you are still getting a lot of body roll when towing, or even when not towing, the SumoSprings...
view full answer... - Is a Spacer Needed to Install the TJRJK on a Jeep with a 1 Inch Lift?If the leveling kit raised your rear end by an inch, you will need the 1 Inch spacer # A25723-90AH00. It should be noted that this is a single spacer so 2 will be needed to complete the install.
view full answer... - Rear Suspension Enhancement Recommendation for 2008 Jeep Wrangler Unlimited with 4 inch LiftI have a suspension enhancement solution I can provide for your 2008 Jeep Wrangler Unlimited but the air bag style kits are not a fit with lifted vehicles. Instead you would want the Timbren kit part # TJRJK with the lift spacers # A25723-90AH00 for each inch of lift you have. So in your situation you would need a total of 8 for both sides.
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Expert Research:
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Video Edited:
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Video Edited:
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Updated by:
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