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  1. Vehicle Suspension
  2. Timbren
  3. Jounce-Style Springs
  4. Rear Axle Suspension Enhancement
  5. Light Duty
THIS ITEM IS NOT A FIT FOR
2013 BMW 1 Series

Timbren Rear Suspension Enhancement System

Item # T76FR
Retail:$316.90
Our Price: $269.36
You Save: $47.54
Vehicle Suspension
Not Confirmed to Fit

2013 BMW 1 Series

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Shipping Weight: 6 lbs
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3,000-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 T76FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - T76FR

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • Light Duty
  • Timbren

3,000-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 and vehicle-specific hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 3,000 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.



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

Installation Details T76FR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Timbren Rear Suspension Enhancement System - T76FR

Average Customer Rating:  4.7 out of 5 stars   (5987 Customer Reviews)

3,000-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.

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Undercounter mount to quartz countertop. Much better than the double bowl that it replaced. It was bought as a scratch and dent one corner was bent,fixed with a pair of pliers, great buy thank you etrailer.



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Strainer/basket is holding up well after one year of use in our RV, no issues.



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Happy with them so far I'll see how they do under a load soon.



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Got them installed. TERRIBLE instructions! Fit was a little vague and getting a wrench on the top nut was tricky. Seem like they’ll work though. I just did a Tereflex puck lift same day and the two kits are worlds apart in terms of engineering and installation instructions.



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It was very easy to install and it works flawless. Great product!



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2021 Jeep Gladiator

Excellent communication and insane fast shipping!



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2020 Jeep Gladiator



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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.



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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.



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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.



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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.



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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.



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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.



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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.



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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



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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.



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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.



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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.



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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.


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See what our Experts say about this Timbren Vehicle Suspension

  • Recommended Helper Springs For A 2020 Jeep Gladiator With A 2 Inch Lift
    When it comes to installing helper springs on your 2020 Jeep Gladiator with a 2 inch lift I recommend The Timbren Rear Suspension Enhancement System # T76FR. This system has a 3,000 pound capacity and sit above the rear axle to help stabilize and level your Jeep Gladiator. You will also get a better ride because they absorb road shock and improve roll stability. They're easy to install and use. The spring work independently - side-to-side, and help compensate for off-center loads. Make...
    view full answer...
  • What Timbren System do You Recommend for My 2022 Jeep Gladiator?
    For great Timbrens for your 2022 Jeep Gladiator for your rear axles, I recommend the Timbren Rear Suspension Enhancement System # T76FR. These Timbrens reduce side-to-side movement as well as reduce vehicle sag. By serving as shock absorbers, this system ultimately increases the life of your factory suspension. As far as installation, the springs come with custom mounting brackets. I went ahead and linked a review video that walks you through some of the specs of the Timbrens.
    view full answer...
  • Are There Rear Suspension Air Bags for a 2021 Jeep Gladiator
    I do have options for you but the air bags for a 2021 Jeep Gladiator are all designed for the factory coil springs so we can't confirm fit if you have swapped these out for aftermarket. The only options we can confirm fit of with aftermarket coil springs is the jounce replacement style like the Timbren Rear Suspension Enhancement System part # T76FR which will also require the Timbren Spacer For Raised Frame Vehicles part # A25723-90AH00.
    view full answer...
  • Do I Need Spacers With the Timbren # T76FR Jounce Springs On a 2022 Jeep Gladiator?
    I reached out to Timbren as I do not have one of the Timbren Springs # T76FR in my warehouse to physically measure. They informed me you will need to measure from the bottom of the cup on your 2022 Jeep Gladiator. The portion that fits inside the cup will hang down 3/16" while the spring is 3-3/4". This will place the bottom of the spring 3-15/16" below the cup. The kit does include a 1/2" spacer which will lower it to 4-7/16" below the cup. Timbren recommends 1/2" to 1-1/2" gap between...
    view full answer...
  • Which Timbren Rear Suspension Kit Fits 2020 Jeep Gladiator
    Hey Al, so we do this fun thing where we change the manufacturer part numbers and it can create confusion. But bottom line is our part number # T76FR is the same as Timbrens JRGD which does fit your 2020 Jeep Gladiator so this is correct fit. Since your Gladiator is lifted you would need spacers to take up the extra space created but I would need to know how big of a lift you have.
    view full answer...
  • Timbren Kit for 2021 Jeep Gladiator and Spacers to Use for 4 inch Lift
    The correct rear Timbren kit for your 2021 Jeep Gladiator is the part # T76FR which if you were to install a 4 inch lift you'd need 4 of the 1 inch spacers part # A25723-90AH00 for each side to take up that extra space created.
    view full answer...

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Chris R
Video Edited:
Chris R
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 Daron K
Edited by:
Daron K
Employee Alex H
Written by:
Alex H
Employee Thomas T
Video by:
Thomas T
Employee Matthew B
Test Fit:
Matthew B

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