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  1. Vehicle Suspension
  2. Timbren
  3. Bump Stops
  4. Off-Road/Performance
  5. Rear Axle Suspension Enhancement
  6. Standard Duty
THIS ITEM IS NOT A FIT FOR
1999 Isuzu Trooper
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Timbren

Timbren Active Off-Road Bumpstops - Rear Suspension - 2,000 lbs

Part Number: TABSTRFK
In Stock
$398.07
Retail:$468.32
You Save: $70.25
Vehicle Suspension
Not Confirmed to Fit

1999 Isuzu Trooper

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Great Prices for the best vehicle suspension from Timbren. Timbren Active Off-Road Bumpstops - Rear Suspension - 2,000 lbs part number TABSTRFK can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - TABSTRFK

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Smoother Off-Road Control: Progressive rubber springs absorb harsh jolts for a gentler ride.
  • Better Suspension Travel: Maximizes axle movement so impacts feel smoother and more predictable.
  • Built to Last: Natural rubber and powder-coated steel resist wear from off-road abuse.
  • 2,000-lb Standard Capacity: Helps cushion loads without bottoming out or harsh end-of-travel contact.
  • Easy DIY Install: Includes U-bolt flip kit for quick setup using common hand tools.

Features to know about

Control Bottom-Outs and Harsh Hits: Progressive Rubber Springs Smooth the Ride

Rough terrain and sudden dips can slam your suspension hard at full travel. These Timbren Active Off-Road Bumpstops use progressive-rate rubber springs that absorb the impact before it becomes a jarring stop. Instead of a harsh metal-to-metal hit, the axle energy is cushioned for smooth, predictable, and quiet engagement and disengagement. You get a steady, comfortable ride even when the suspension maxes out.

Handle Heavy Loads with Confidence: 2,000-lb Standard Capacity with 4,800-lb Bump Load

Whether it’s gear in the bed or equipment out back, this setup keeps your rear suspension performing strong. With a 2,000-lb standard weight capacity and a 4,800-lb bump load rating, these bumpstops step in when you need extra cushion under load. The support helps control squat and keeps the vehicle steady so steering and braking stay consistent when hauling or running rough trails.

Built to Take Abuse: Natural Rubber and Powder-Coated Steel Construction

Factory bumpstops wear fast when pushed hard. These are made from a natural rubber compound that stays flexible and effective even after years of off-road use. The steel brackets and disks are laser cut for precision, then coated with a durable powder finish to resist rust and corrosion. It’s a setup built to handle real-world punishment without giving up performance.

Install and Go: Includes U-Bolt Flip Kit for Easy Mounting

Getting set up is straightforward thanks to the included U-bolt flip kit. Everything is designed for simple installation so you can bolt it on without extra parts or complicated steps. Once fitted, you’re ready to roll with smoother travel, better control, and suspension protection that lasts for the long haul.

Specs

Weight and Capacity

  • Weight capacity (Standard): 2,000 lbs
  • Bump load: 4,800 lbs

Dimensions

  • Overall Height: 5-1/2 inches
  • U-bolt length: 8-1/4 inches
  • U-bolt spacing (on center): 3-3/4 inches

Construction

  • Material: Natural rubber compound
  • Bracket and disk construction: Steel, laser cut, powder coat finish

Included Components

  • Installation hardware: U-bolt flip kit included

Warranty

  • Warranty type: Lifetime warranty
  • Satisfaction guarantee: Included

ABSTRFK Timbren Active Off-Road Bumpstops - Rear Suspension - 2,000 lbs



This Product Fits The Following Vehicles




Ratings & Reviews

4.7

157 reviews
5 Stars
(129)
4 Stars
(20)
3 Stars
(5)
2 Stars
(1)
1 Star
(2)
Review Sort Icon
by:
2023 Toyota Tacoma
The kit arrived fine, but the small parts were in what looked like a sandwich bag. Everything looked new, but it definitely looked like I was sent an open box item.
by:
I installed these on a customers truck. They we're easy to install and have not heard a complaint from customer. So must be good.
by:
2023 Toyota Tacoma
Brooke M. profile picture
Etrailer Expert

Brooke M.

1/11/2023

It looks like your experience with the product or with shopping at etrailer could have gone better. If you would like to add any comments to your review, I would be happy to assist you.

by:
easy to install good product..
by:
2025 Ford Maverick
Install is straight forward. I would note that on my 2025 hybrid I had to cut the tie wraps from the remove wire clip and use my own zip ties. The spacing between tie wraps was far too short to simply move the clip to the new location on the timbren bracket.
Claire H. profile picture
Etrailer Expert

Claire H.

8/21/2026

I'm glad you were able to make it work even with the zip ties being too close together when trying to relocate them to make space for the bracket. What are you planning on towing with your Maverick?

Claire H. profile picture
Etrailer Expert

Claire H.

8/21/2026

I'm glad you were able to make it work even with the zip ties being too close together when trying to relocate them to make space for the bracket. What are you planning on towing with your Maverick?

by:
2025 Toyota 4Runner
If you remove your tire, it's extremely easy to access and install (at least on my 2026 4runner). I took a measurement to my hitch, with no load. It was 19 1/2". Then I attached my rv and with the factory bumpstops, it was 17 1/8". Then after the Timbren install, same load, it was 18 1/8". It reduced the "sag" by 1". Plus, I think the 4runner handles better on bumpy roads and turns.
by:
2019 ford Ranger
For the vanilla review but five stars I don't notice the Timbren Off Road Bump Stops since they seem to be doing their job! I have been in the woods and towed our travel trailer with them with zero issues. I went with these verses the the overload type to mimick the OEM stops on my 2019 Ford Ranger. I didn't want to sacrifice rear axle articulation off road so I opted for the shorter stops. All works as it should. My truck doesn't squat any different from the OEMs with the trailer attached and loaded and the ride quality is the same which is what I was going for. Also much cheaper than the OEM replacements and better materials.
by:
Super easy to install and they definitely helped with my RV and it's tongue weight. However when I was hauling a load of wood in the back, they were just bump stops, fully compressed. I broke down and replaced them with air bags which are a huge pain to install with all the brackets but they work much better for heavy loads
by:
Not sure how I would rate these Timbrens the application would not work on my truck. When installed on my truck, there was not enough clearance brake and other lines on drives side axle to feel comfortable with. Also, the temperance sat approximately 3 1/2 inches off of the axle when truck is in unloaded Did not look like it was going to sit on Timbrens axle flat plate. I believe this is a good product just not a product that’s going to work for me.
I returned the product back to etrailer as of now I have no issues for my refund. Customer service was great to work with no complaints there. Still not decided if I’m going to try something else for pulling our travel trailer.
by:
Made a huge difference on my 5th gen. Have king suspension on it and used with toytec drop kit. Smoothed it out. Should have done this upgrade years ago. Pictures show oem, and timbren compressed on a curb. Even though they are active off-road I’m sure it will help with towing as well. Easy install.
by:
2024 Toyota Tacoma
Easy install (2024 Toyota Tacoma TRD Sport 4X4) of the quality Timbren bump stops. Took about 30 minutes, taking my time. Just raises the rear end about six inches with a floor jack and a block of wood, six bolts total. I have not tried towing my camper yet but I did buy some heavy windows and there was no sag. The bump stops are crazily overbuilt compared to the factory (see picture) and are a simple upgrade if you have sag when towing or carry heavy loads in the bed (for reference, the Timbren stops are roughly one inch above my axle when unloaded.)
Makes me want to go hook up my camper just to see where she sits, but I have no doubt that the Timbrens will eliminate any dip in the back. Recommended for build quality, ease of install and economy (compared to air bags or other alternatives)
by:
BMW X1
So far, they’re excellent. I have a 24’ Taco w/ SuperPacific X1 camper. The bumpstops even out the ride when the rig is full. Great addition. Great Quality. Easy install.
Tb. profile picture

Tb.

2/18/2026

I have them on my 4th Gen Toyota. Have an Wedge Camper and can go backcountry with 600 lbs or more in the back. The Timbren Active Off-Road Bumpstops helped tons just last weekend while 4x4ing grinding out up old minning roads and camping in eastern CaliforniaNevada. Saved use numerous times form bottomming out hard. Very satisfied.

Kate F. profile picture
Etrailer Expert

Kate F.

2/18/2026

@Tb Sounds like a great time Tb! The last time I was out in California visiting friends and family, my buddies and I took an old Suburban out in the Mojave desert, after driving in the ice and snow here in Missouri I did not hold back, it was a blast! Glad to hear we had the right fit for you not to bottom out. Where are you headed for the next adventure?
by:
toyota Tacoma
Install on a 2025 Toyota Tacoma TRD Off Road was simple and quick. Transformed the ride quality over large bumps and works great for towing! I’ve run airbags and heavier springs on trucks before and the bump stops are an excellent alternative to both.
by:
2025 Nissan Frontier
No issues. Bump stops were easy to install. 10 minutes tops. Etrailer is a great company to order from.
by:
2012 Toyota Tundra
I had these on my Tacoma and liked the way they worked so much that I got a set for my new to me Tundra. You don't notice anything until you put a load on the truck. Then you feel more stable under load and don't have to worry as much about the leaf springs. The install was done in 15 minutes
Lance profile picture

Lance

10/18/2020

I pull a 20 ft car hauler with the Tundra and recently hauled a car to Arizona then hauled another back. The frame just touches the top of the Timbren when loaded. After 3,000 miles of driving I am even more convinced that this is a great product. The truck never squats from trailer load and the Timbren also keeps the ride smooth straight and steady when pulling a load. When unloaded there is about a one inch gap between the frame and the Timbren so it drives like stock when lightly loaded or unloaded.

by:
While towing my boat (2021 Tracker Pro Guide V-175/Mercury 115 ProXS, ~3,200lbs) in my 2021 Toyota 4Runner SR5 Premium, I noticed a significant rear squat. Additionally, fellow motorists would flag me for “high beaming” when I was not. This squatting in the rear raised the front end and subsequent headlight alignment. After much research and review, I purchased the Timbren SES and installed it. With the vehicle hitch unloaded, the SES rides approximately 1.250” above the rear axel. With the boat loaded onto the hitch, the Timbren SES contacts the axel and holds the load firmly, maintaining a level vehicle. I was pleasantly surprised to see that the ride was not greatly effected. Matter of fact, the vehicle rides much better while towing than before installing the SES. With the 3rd row seating in use, and the vehicle full of passengers, the rear passengers complained of a very bumpy ride and I noticed a very rough feel with hard bumps from the rear. After installing the Timbren SES, even with the boat on the hitch and the vehicle fully loaded, my 4Runner remains level and the ride is substantially improved. If you have 3rd row seating and/or plan on towing ANYTHING with your 4Runner, you absolutely need the Timbren SES. Installation is a breeze. Easiest accessory you’ll ever upgrade.
by:
These installed just like the instructions on your website. I think they will help with hauling loads to the landfill for me. That’s about as off road as I go.
by:
Ford Five Hundred
It was easy to install. I will pull a heavy trailer next week for about 500 miles and know better then how well it works.
by:
Ford Flex
These work really well. Hold a load and still allows for the flex. Perfect combination!
by:
2013 Toyota 4Runner
My 2013 4runner was squatting in the rear when I coupled my 6X12 motorcycle trailer. I was very happy to have found the Timbren bump stop to simply bolt on and fix the problem. However.....during the installation I noticed I had to use ALL of the adjustment slot on the unit to TRY to center on the rear axle. I oriented the units as far towards the rear as the adjustment would allow.
When I coupled my trailer to the 4runner it correctly forced the Timbren bump stop to contact the axle and this is where the problem is.
The Timbren bump stop CAN NOT be adjusted far enough towards the rear to accomplish a centering on the axle. There is a 25% overhang of the bump stop on the axle front. When I communicated with Timbren about this they said" it's a good installation and it's ok". It is not ok.
Imagine that all of the force of a fully loaded truck will be negotiating curves, potholes, swoops and other hazards of the road at highway speeds. All of this stress is distributed on 75% of the product. It can't work as well as if it was 100% distribution. I felt the product was overpriced to begin with. After paying a premium price I expected a custom proper fit.
I can't recommend this product for Toyota 4runner owners.
by:
I’ve been running the ActiveOffRoad bumpstops on my vehicles for several years and have installed several sets on friends and customers vehicles as well. I highly recommend them as the finishing touch to any performance suspension upgrade, as they reduce any hash bottom-out situations to virtually nothing. Also the SES models greatly improve ride and load capabilities on stock vehicles, also with a much improved ride. Wonderful products!
by:
Installation was a breeze! Followed the instructions and lifted the truck up using a jack under my hitch, loosened the u-bolts, removed the factory bump stops and installed the timbrens! Took 5 minutes for each side, and 5 minutes to setup and take down setup. 15 minutes max. Very easy to do. I believe I am going to need a 1” spacer as I have 1.5” Icon add-a-leaf packs in order to get them to engage while towing.
by:
2025 GMC Canyon
Perfect fit, good quality. Highly recommend.
by:
Great after sales service , took care of my problem right away without any hassle, very friendly staff
by:
The Product should work out well I think.
Very nice to have somewhat personal service.
Thank you!
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See what our Experts say about this Timbren Vehicle Suspension

  • Recommended Timbren Rear Suspension Enhancement For A 2019 Toyota Tacoma With 4WD
    Suspension enhancement systems like Timbren springs are perfect for the scenaro you're describing. These solutions supplement your factory suspension but don't necessarily increase your capacity. Timbrens are hollow rubber springs that sit above the rear axle to help stabilize and level your Toyota Tacoma. Below are what I recommend of the available spring choices. For off road applications, I recommend the Timbren Active Off-Road Bumpstops # TABSOSR for vehicles if the axles are...
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  • What are the Dimensions of the Timbren Active Off-Road Bumpstops for Toyota Tacoma?
    The Timbren Active Off-Road Bumpstops - Rear Suspension - 3,600 lbs # TABSTRFK have bump stops and mounts that are 5-1/2 inches tall overall and u-bolts that are 8-1/4 inches long and 3-3/4 inches on center. I've attached a photo to assist. These jounce springs will mitigate sag when towing and they will work great for your off-road towing.
    view full answer...
    Image 1 for Image 2 for
  • What is Overall Height of Timbren Kit # TABSTRFK
    Hey Gary, the dimension you are looking for of the Timbren kit part # TABSTRFK is 5-1/2 inches like you can see in the attached picture.
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  • Comparing Timbren Suspension Enhancement for 2018 Toyota Tacoma
    There are six different Timbren kits for suspension enhancement that all fit your 2018 Toyota Tacoma. Four are for the rear and two are for the front. Of the front two, part # TTOFTUN4 is designed for adding support when you put a snow plow on the truck and # TABSTOF is an active bump stop that cushions the shock when off-roading. A couple of the rear kits are designed to support the rear of the truck when either towing a trailer or adding weight in the bed. Use part # TTORTUN4 if your...
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  • Comparing Timbren Kits for 2022 Toyota Tacoma
    There is an interesting amount of Timbren kits that fit your 2022 Toyota Tacoma long bed. The part # TABSTRFK is a standard duty kit that comes with a U-bolt flip kit helps with ground clearance. # T72FR is a severe service kit for 3 leaf springs which means it's going to be really harsh, # T62FR is same thing but for 4 leaf spring packs. # TABSOSR is a standard duty kit which means it'll give best blend of support and ride quality. This would be what I would recommend.
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  • Recommended Timbren Rear Suspension Enhancement for a 2010 Toyota Tacoma With 4WD
    There are a few different options that we have for you to install a Timbren Rear Suspension Enhancement System on your 2010 Toyota Tacoma that is 4WD. Please keep in mind that any suspension enhancement system will not increase your weight capacity. It is meant to supplement a suspension system that is in good working order. You should never exceed the weight-carrying capacity of your vehicle. If you plan on driving places that might not have a road then I recommend going with the Timbren...
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  • Comparing Timbren Rear Helper Springs for a 2016 Toyota Tacoma 4x4
    The springs in both Timbren kits for a 2016 Toyota Tacoma 4x4, # TABSOSR, and # TTORTUN4L, are both 3-3/4 inches tall. The difference is that kit # TABSOSR is intended for vehicles without a U-Bolt Flip Kit. And # TTORTUN4L is designed for vehicles with 3 Leaf Springs in the rear suspension. To avoid a stiff ride a better option would be air bags, # F2407. They will allow you to adjust the air pressure in the bags for the best ride quality. I have linked a video review of the Firestone...
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Info for this part was:

Employee Leah B
Written by:
Leah B
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeff D
Installed by:
Jeff D
Employee Aidan B
Installed by:
Aidan B
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee John S
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