1. Vehicle Suspension
  2. Timbren
  3. Bump Stops
  4. Rear Axle Suspension Enhancement
  5. Light Duty
Timbren Active Off-Road Bumpstops - Rear Suspension - 3,600 lbs

Timbren Active Off-Road Bumpstops - Rear Suspension - 3,600 lbs

Item # TABSOSR
lowest price pledge
Retail:$265.18
Our Price: $225.40
You Save: $39.78
Vehicle Suspension

Will this fit?

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

This item qualifies for Free Shipping
Shipping Weight: 5 lbs
Quantity: 
Timbren Active Off-Road Bumpstops - Rear Suspension - 3,600 lbs Bump Stops TABSOSR
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

Lowest Prices for the best vehicle suspension from Timbren. Timbren Active Off-Road Bumpstops - Rear Suspension - 3,600 lbs part number TABSOSR can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (27)
  • Q & A (21)
  • Photos
  • Why etrailer?

Timbren Vehicle Suspension - TABSOSR

  • Timbren
  • Bump Stops
  • Rear Axle Suspension Enhancement
  • Light Duty


Timbren's Active Off-Road Bumpstops provide off-road enthusiasts with greater control over their vehicle's suspension travel. Using progressive-rate springs means that instead of a hard stop at the end of axle travel, the axle energy will be absorbed when bottoming out, producing smooth, predictable, and quiet axle engagement and disengagement. The progressive rubber springs absorb the harsh jolt at the end of axle travel, giving you a gentle ride the whole time.


Unlike your factory bumpstops, Timbren's bumpstops are constructed of a superior natural rubber compound, ensuring the bumpstops will continue to operate even after a lifetime of off-road abuse. And the steel brackets and disks are lazer cut before they are painted with a durable, long-lasting powder coat finish to ensure protection and long life.


Features:

  • Designed to maximize axle travel
  • Smooth axle engagement and disengagement
  • Enhances rear suspension performance
  • Progressive spring rate
  • Absorbs energy and cushions road shocks
  • Constructed of a natural rubber compound
  • Stronger than OEM bumpstops
  • Easy installation - hardware included
  • Capacity: 3,600 lbs
  • Lifetime warranty
  • Satisfaction guarantee

ABSOSR Timbren Active Off-Road Bump Stops - Rear Suspension - 3,600 lbs

ABSOSR Timbren Active Off-Road Bumpstops - Rear Suspension - 3,600 lbs

Installation Details TABSOSR Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Timbren Active Off-Road Bumpstops - Rear Suspension - 3,600 lbs - TABSOSR

Average Customer Rating:  4.4 out of 5 stars   (27 Customer Reviews)


- TABSOSR
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


Comments
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.
Lance - 10/18/2020


- TABSOSR
by:
2014 Toyota Tacoma

I have a medium-duty truck and recently purchased a camp trailer. Well, when I pulled the trailer home for the first time the back of the truck was weighed down. I installed the new Timbren Active Off-Road Bumpstops and they improved the load capacity immensely. When I get the cash saved up I plan on purchasing the Timbren Active Off-Road Bumpstops for the front. Worth every penny.


Comments
great
Malcolm - 03/04/2021


- TABSOSR
by:

I've got a 2019 Tacoma TRD Offroad Double Cab with otherwise stock suspension: Bilsteins and 4 leaf spring in rears. GVWR is 5600lbs and I run it at about 5200lbs with all my racks and add-ons. I've only off roaded a couple times (with even more load) and didn't have any issues bottoming out my stoppers, but I often jarringly hit my stoppers in the streets of San Francisco, most notably heading east on Fulton St at 43rd Ave at a bus stop transition (35 mph speed limit). I was hoping this quick fix would alleviate the problem without stiffening my normal ride. I find the truck, when unladen, is bouncy at highway speeds on concrete roadways (gets a sea sick inducing bounce when the suspension becomes harmonic with the cracks and surface waves), so I didn't want to tighten up the suspension at all. I got the Timbren Active Offroad bump stops yesterday and it took me just over 30 mins to install with no hassle. There is only a hair gap between the top of the bump pad and the frame when parked. I took it for a test drive through the neighborhood and it felt like it did stiffen the ride a little bit, but had more control over bumps and dips, and less side sway. Then this morning I took it to the fateful Fulton test spot. Boy did it hit hard today. The change in my trays didn't go flying as usual, but I did bottom out the new bump stops with a thud. So their performance was not as great as I had hoped, but it did make it a little better. My expectation may not be reasonable, but I thought its road performance with be better than off road (I guess you go slower off road though). I'll have to see over time and perhaps consider more suspension upgrades. One thing I am curious about is how much bed sag I will have if I'm hauling stone. I've ridden on the stock bump stops with trips from the yard, so although these are not designed for towing or hauling, I'm hoping they will help the sag some. Maybe I can update this in a few weeks.



- TABSOSR
by:
Nissan Frontier

These were a breeze to install with rear of my Frontier Pro4X on ramps. they fit perfectly, and are a drastic improvement over the rock hard rubber factory bump stops.



- TABSOSR
by:

Easy install and helps with loads.



- TABSOSR
by:
2017 Chevrolet Silverado

I used this product on my 2013 Tacoma and 2017 Silverado and they work great towing a 21 ft bass boat and a heavy utility trailer.



- TABSOSR
by:



- TABSOSR
by:
2016 Nissan Frontier



- TABSOSR
by:
2008 Toyota Tundra



- TABSOSR
by:

Definitely a practical efficient product that works well.



- TABSTORSEQ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


I had no problems with the installation. It only took about 15 minutes to put these on! There is adjustment space on the brackets to let u be able to center product over rear axles. The pictures below show the product installed while my 4 runner is both raised up for installation and after lowering it down. When lowered down and jack removed I have about an inch clearance.



- TABSTORSEQ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


I used this on a 2019 4Runner TRD PRO I go on long over landing trips and the fox suspension can be kind of soft at times when fully loaded with gear. This helped with sag and also the ride off-road when fully geared out on stock suspension.



- TABSTORSEQ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


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.



- TABSNXF
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


These bumpstops are excellent! they look better in person than they do in the picture. Because I have a 2" spacer lift on my Frontier Pro4X, I needed to Timbren 1/2" spacers & longer 2" bolts. I tested these under full flex and they work perfectly.



- TABSTORLC1
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


well I will instalet this week end and going on a exploration trip to Baja califofrnia Mexico



- TABSTORSEQ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


This product limits travel of the axle when you go over a speed bump or in a dip in the road. They replace the existing snubbers on the frame and extend down to within a half inch of the axle. It was an easy install with the tire removed and the car on jack stands. The replacement bolts go in the existing threaded connections. Start to finish was about 45 mins for me and I am no expert. Once installed the car has a comfortable ride but speed bumps and pot holes have their bounce affect greatly reduced. I think these will improve my trailer towing future.



- TABSTORSEQ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension




- TABSJRC01
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


These are very easy to install on the Xterra. They definitely soften the blow when hitting a bump that compresses the rear suspension at speed. There is a bit of rebound with them that I wasn't expecting. Nothing terrible, just noticeable. These could be a temporary fix for the notoriously weak stock leaf springs on the Xterra, but are probably not a long term solution for that issue. I think, when combined with new leaf springs, that these are a nice upgrade to a vehicle that sees off road use from time to time.



- TABSTORSEQ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension




- TABSTRFK
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


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.



- TABSJFTJ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension




- TABSTOF
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


Disappointed in this item TABSTOF. They look and feel almost exactly like the factory bump stops, except with a hole drilled in the center. I can't imagine these would make much of any difference in rebound cushioning as there is just not much to them. There is another part which is more appropriate TOFTAC4A, which are larger and would actually have a benefit whether in a standard or lifted suspension.



- TABSTORSEQ
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


This place has restored my faith in online companies GREAT JOB



- TABSJRJK
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


very easy to install



- TABSFR1504R
by:

Review from a similar Active Off-Road Bumpstops in Vehicle Suspension


Works great, easy to install!!!


27
29
Show More Reviews

Ask the Experts about this Timbren Vehicle Suspension

  • Height Of Timbren Springs and Vertical Wheel Travel Loss In 2019 Toyota Tacoma
    When installing any Timbren system on the 2019 Toyota Tacoma you should have about 1/2" to 1-1/2" between the frame and the spring after installation. You won't necessarily be losing wheel travel when you use a Timbren Rear Suspension Enhancement System on the Tacoma. I recommend either the # TTORTUN4 system if you have 4 leaf springs in the rear suspension or # TTORTUN4L if you have 3 leaf springs in the rear suspension. When you switch out the factory bump stops for the Timbren springs...
    view full answer...
    Image 1 for Image 2 for
  • Rear Helper Springs/Suspension Enhancement for a 2018 Chevy Colorado ZR2 Diesel
    For your 2018 Chevy Colorado ZR2 Diesel I recommend Roadmaster Active Suspension # RAS4617. This system will provide extra support when towing and/or carrying loads in the truck bed as well as help with overall stability all without affecting the unloaded ride quality of the truck. The kit comes assembled and ready to install so you will have more time for your adventures!
    view full answer...
  • Replacement Bump Stops for a 2016 Chevrolet Colorado LT with Rough Country 6 Inch Lift Kit
    For starters, if you are going to be using your 2016 Chevrolet Colorado LT for towing then the Timbren Suspension Enhancement System would be correct but if you going to be using your 2016 Chevrolet Colorado LT for off roading then I recommend using the Timbren Active Off-Road Bumpstops. The Off-Road system has a softer spring which you will want for hard impacts whereas the SES system has a harder spring that will be better for constant loads. I called Rough Country and the said that...
    view full answer...
  • Timbren Suspension Enhancement System for 2018 Toyota Tundra 4WD
    The Timbren Rear Suspension Enhancement System # TTORTUN4 is a great SES that fits your 2018 Toyota Tundra. The Timbren line of SES is really popular and there are several models available. The # TTORTUN4 features heavy duty rubber springs with a 6,000 lb weight capacity. The Timbren Active Off-Road Bumpstops # TABSOSR features a lighter duty rubber spring with a 3,600 lb weight capacity. Both products fit your vehicle and install in the same way, but the # TTORTUN4 is better if you expect...
    view full answer...
  • Installation of Timbren Suspension Enhancement Springs on 2012 Toyota Tundra 4x4
    The Timbren Springs for your 2012 Toyota Tundra Crew Max 4x4 like # TABSOSR all install to the spring stack at the rear and not to the frame. The front mounted springs # TABSTOF do however mount to the frame. All of the rear suspension enhancement options from all our manufacturers mount to the leaf spring stack on your specific truck.
    view full answer...
  • Rear Suspension Enhancement Recommendation for 2018 Toyota Tundra
    For your 2018 Toyota Tundra the suspension enhancement I recommend is the Timbren kit part # TABSOSR because this kit installs easily, gives you the suspension support you need to greatly reduce the sag, and because it doesn't require monitoring air pressure or running air lines like the air bag kits do so it's very low maintenance. I attached a link to an install video for this kit for you to check out as well.
    view full answer...
    Image 1 for
  • Rear Axle Suspension Helper Springs for 2019 Chevy Colorado Diesel
    For the 2019 Chevy Colorado with diesel engine there are not any compatible air bag kits (as of April 2019) but we do have other suspension helper kits that can support the rear suspension when it is under the load of your 5000-lb trailer. Based on your trailer weight I recommend the Super Springs kit # SSR-212-40. Their 1000-lb rating is just right for your trailer tongue weight and they will give you the support you need to prevent sag without causing the ride to become harsh. Their...
    view full answer...
  • Assembled Height of Timbren Active Off-Road Bumpstops # TABSOSR
    The Timbren Active Off-Road Bumpstops # TABSOSR referenced in your question feature an assembled height of 4-5/8 inches. I have attached a short video review on this kit along with the written installation instructions that you can check out as well.
    view full answer...
    Image 1 for
  • 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...
    view full answer...
  • Total Height of Timbren Active Off-Road Bumpstops for a 2011 Nissan Frontier
    The total height of the Timbren Active Off-Road Bumpstops part # TABSOSR which are a fit for a 2011 Nissan Frontier is 4-5/8". If you want to add spacers you'll use the Timbren Spacer part # TA25722-90P00 and or part # A25723-90AH00. In regards to fitment, you can add spacers so there is no space between the contact point and bumper but this would not lift the truck and it could also result in a stiff ride.
    view full answer...
  • Recommended Bump Stop Suspension Enhancement for a 2017 Chevrolet Colorado
    Really the only difference between the Timbren part # TABSGMFCC and part # TABSOSR for your 2017 Chevrolet Colorado is that the former is rated for up to 1,000 lbs while the latter is rated for up to 3,600 lbs. Out of these options I would go with the set that has a higher rating. Since you do off-road driving you will want to use the off-road bumpstops referenced above. If you are looking for ride comfort though I recommend going with the SuperSprings Solo Custom Helper Springs # SSR-212-40....
    view full answer...
  • Will Timbren Helper Springs Cushion Ride of 2018 Chevy Colorado when Towing with Weight Distribution
    It is possible that the weight distribution system you are using is rated too high for the total tongue weight of the trailer. Total tongue weight is the tongue weight of the trailer when loaded and ready to tow plus the weight of anything loaded behind the rear axle in your 2018 Chevy Colorado. So for example if the trailer tongue weight is 500 pounds and you have 40 pounds of stuff behind the rear axle the total tongue weight would be 540 pounds. The 750 pound Blue Ox systems are rated...
    view full answer...
  • Suspension Enhancement Recommendation for 2008 Toyota Tundra
    We have suspension enhancement that fits your 2008 Toyota Tundra that will help you tow within the capacities of your truck, but nothing we offer will give you higher capacities than what you already have. Our suspension enhancement kits like the Timbren part # TABSOSR which fit your Tundra will help reduce sag when towing a heavy trailer but you have to make sure the weight of the trailer is less than the towing capacity for the truck. It's not just the suspension and engine power that...
    view full answer...
  • Rear Suspension Enhancement for 2021 Chevy Colorado 4x4
    For your 2021 Chevy Colorado 4x4 we have the Timbren rear suspension kit part # TABSOSR as a confirmed fit that would do an excellent job reducing the sag you are experiencing. SumoSprings does not have a kit for your truck at this time but the Timbrens are essentially the same design as it's a jounce type bumper designed to replace the bump stop.
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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
  • Timbrens or Firestone Air Bags for 2019 Toyota Tundra TRD Towing a Trailer
    I highly recommend the Firestone Ride-Rite Air Helper Springs # F2445 for your 2019 Toyota Tundra TRD over the Timbren Active Off-Road Bumpstops # TABSOSR because the Firestone air bags are going to be a greater help to your Tundra when you're towing. In regards to the suspension travel you asked about, the Firestone air bags only need to be inflated to a minimum 5 psi so when you aren't towing it will essentially be like you don't have them on. The Timbrens are going to be much more...
    view full answer...
  • Can Spacers be Used with SumoSprings on a 2015 Toyota Tundra
    There aren't any spacers for the SumoSprings # SSR-610-47 but there are for similar kits that will also fit your 2015 Toyota Tundra. You could use Timbren springs # TABSOSR with 2 of 1 inch spacer # A25723-90AH00. You may need to obtain longer bolts locally though to use the spacers.
    view full answer...
  • 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...
    view full answer...
  • Suspension Enhancement Recommendation for 2016 Toyota Tundra TRD with 5th Wheel Rails
    I have a suspension enhancement kit that fits your 2016 Toyota Tundra TRD if you were to install the Reese fifth wheel rail kit part # RP50026-58 but none of the air bag kits are a fit. Instead you'd need to go with the Timbren kit part # TABSOSR which would not interfere and would work well for more suspension support. It gives you suspension support when you need it but when unloaded does not affect the ride quality. Also it does not require maintaining air pressure like the air bag kits do.
    view full answer...




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality vehicle suspension for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate vehicle suspension information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

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 Adam R
Expert Research:
Adam R
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Mary E
Updated by:
Mary E
Employee Shane H
Test Fit:
Shane H
Employee Jonathan Y
Video by:
Jonathan Y

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.