1. Vehicle Suspension
  2. Timbren
  3. Jounce-Style Springs
  4. Rear Axle Suspension Enhancement
  5. Standard Duty
Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

Item # TTORTUN4L
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Retail:$265.18
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Timbren Vehicle Suspension - TTORTUN4L
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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. Lowest Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System part number TTORTUN4L can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Timbren Vehicle Suspension - TTORTUN4L

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

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
      • Does not affect the empty ride of the vehicle
    • 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: 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


Reduced rear axle sag with Timbren suspension enhancement

Whether you're hauling heavy loads in your bed or cargo area or 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 your rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the leaf 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.


Action 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.


Trailer swaying as it is towed behind a truck

Because your 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 SES

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.



TORTUN4L - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TTORTUN4L Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Timbren Rear Suspension Enhancement System - TTORTUN4L

Average Customer Rating:  4.7 out of 5 stars   (2330 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.

- TTORTUN4L
by:
2013 Toyota Tacoma

I purchased this kit to keep my 2013 Toyota Tacoma Double Cab Short Bed from bottoming out when it has a load in the bed. It really did the trick as well as improved the stability with or without a load. The only down side is that the suspension is much more stiff without a load in the bed. It took some getting used to, but after having them on for a couple months, it doesn't bother me. 106946



- TTORTUN4L
by:
2017 Nissan Frontier

The Timbren suspension was delivered on time . The unit was installed using the instructions provided and took about 45 minutes for both sides of the rear axle. I have not put a load on the truck yet to see how it works.There is about 1" of clearance between the rubber timbren stops and the frame of the truck,so it hasn't affected the way the truck handles for now,I'll be able to tell more about it once I hitch my Travel Trailer up.The installation was done on a 2017 Nissan Frontier. 621664



- TTORTUN4L
by:
2018 Nissan Frontier

They were shipped very fast. They product was just as advertised very good. I have just installed them, which was very easy. Have not used them yet with any weight on them but so far very pleased. 862356



- TTORTUN4L
by:

I have a 2006 Toyota Tacoma that I use to pull a travel trailer. The truck has plenty of power to pull the trailer but the suspension has always been outmatched by even light loads (500-1000 lbs). I have had this system in my truck for about a year. It has been tested pulling trailers weighing from 500-5500 lbs and bed loads in excess of 2000 lbs. The product performs admirably keeping the truck suspension from bottoming out. It does not assist with emergency handling under load (sway) but I believe that is beyond the scope of the design. I have not noticed any undesirable or unintended alteration to the truck's suspension in normal driving conditions or while driving off road. For it's intended purpose the Timbren system performs very well. 839084



- TTORTUN4L
by:
2019 Nissan Frontier

Thank you Jameson C for recommending the Timbren Rear Suspension Enhancement System for my 2019 Nissan Frontier 4x4. Very easy to install and with out any load did not stiffen the ride. With no load the Timbren has about 1/2" space between it and the frame allowing it to ride like it did with out it. With the trailer the ride is a bit stiffer but DEFINITELY feels more controllable. The squat in the rear with the 20' travel trailer went from 2.25" to 1". 830276



- TTORTUN4L
by:

Heavy duty. Ride not affected under no load. Very stiff with load but helps to keep truck level and reduces sway on turns. Level is important at night when headlights are on. Simple to install. 794143



- TTORTUN4L
by:
2019 Nissan Frontier

Timbren Rear Suspension Enhancement Kit was exactly what I needed to easily improve the handling of my 2019 Nissan Frontier while hauling heavy loads. The tutorial videos from etrailer are always extremely helpful and make installation very easy. I had the kit installed in about 45 minutes with no problems. The Frontier's ride hauling my next load of large tree branches to our local recycling facility was much improved. 793126



- TTORTUN4L
by:

The product does exactly as advertised. Ride is unaffected and my truck does not "squat" while towing my trailer. 751442



- TTORTUN4L
by:

I've owned this product and had it installed on my 2017 Nissan Frontier for over a year now. I've towed a Travel Trailer RV behind my truck for a month and a half straight, and on many long and short weekends this year. What I can tell you is, I would buy this product again. I do not notice it at all when not towing, the ride is smooth and the suspension acts as it would while daily driving. However, when I have a load on the hitch, the truck doesn't sag, the suspension doesn't feel stiff, and my load and truck are level. Provides a good peace of mind that the load is level and clearance for the hitch due to no sagging of the rear suspension under normal loads. I recommend this product! 745457



- TTORTUN4L
by:

It's what I expected good product and service. Thanks guys 697788



- TTORTUN4L
by:

This works great for leveling my truck when loaded. It also acts as a sway control device and is not harsh when unloaded. I had air bags before but they were constantly losing air and was high maintenance. I love the Tibren SES system! 640751



- TTORTUN4L
by:

These are for a load like towing however I haven't used them for towing yet but daily driving they keep the truck from compressing the springs to the bump stops. I wish I could have all new suspension but my truck is 5 year's new with 50,000 mi 610977



- TTORTUN4L
by:
2011 Toyota Tacoma

Installed on my 2011 Tacoma TRD Off-Road Access cab long bed with a cab high shell. Unloaded the frame sits 1/2" above the rubber 'spring'. This is perfect such that around town and unloaded the drive is the stock suspension and when cornering they come into contact noticeably reducing roll. When the truck is loaded they come into full time contact providing a much superior ride with no bottoming, better ride height and greatly reduced roll. Really makes a difference on backcountry roads when loaded with camping gear. When I installed them last year I was concerned with the rubber potentially deteriorating, but since then they have been on many loaded camping trips on backcountry roads including a long trip from UT to AK/Yukon and back so they have been thoroughly tested with no signs of the rubber failing. Attached is photo showing ride height with easily 1,000 lbs of load added to the truck for an extended camping expedition. Even if you don't carry heavy loads or trailers, I would install these anyway just for the greatly improved roll resistance when daily driving. Cost is high but they work and last justifying the cost. 610686



- TTORTUN4L
by:
2005 Toyota Tacoma

Already installed. Really easy. Just waiting for the fort real haul or load. 576670



- TTORTUN4L
by:

Truck sits level ride is great 569189



- TTORTUN4L
by:

They work very well giving just the right amount of support with a load and not affecting the ride without a load. 555363



- TTORTUN4L
by:
2013 Nissan Frontier

I put the Timbren rear load springs on my 2013 Nissan Frontier. It worked great and helped eliminate that rear sag when pulling a 3600lb camper. They did stiffen the loaded ride but the handling improvement was well worth it. I would defnitely buy this product again. 494251



- TTORTUN4L
by:

It performs as described and stabilized the ride carrying our slide-in camper. 480908



- TTORTUN4L
by:
2016 Nissan Frontier

Easy installation and now allow me to carry loads in my pickup without the headlights shining up into the air and not on the highway. 432271



- TTORTUN4L
by:

I feel better knowing that these are on my vehicle. I do not tow often so I felt this item was better for me than a air ride suspension. I am happy with my purchase. Easy to install maybe 20 minutes and I was done. Bigger than stock help support weight of my camper better. etrailer customer service was very friendly and helpful with my purchase. 422943


Comments
Works so good I forget it is there.
Todd L - 08/20/2018

42571

- TTORTUN4L
by:
2014 Nissan Frontier

I put these on my 2014 Nissan Frontier SV (long box). Overloaded the truck for a move from Alaska to Michigan (3,000+ miles, took the long way to hit up all the national parks). Great ride all the way. Down side to not being adjustable, like airbags, it bucks when riding empty but I don't care. Note for installing, just because mount is centered on leaf spring does not mean it meets the frame/plate on center. Mount accordingly. 419997



- TTORTUN4L
by:
2011 Nissan Frontier

As a life long mechanic (retired), I've installed quite a few Timbren's on customer's trucks and now on my own. What does that say for the product? It speaks for itself but I'll say it. I'm very pleased with them, they work as advertised. Thank you Timbren. 2011 Nissan Frontier Pro 4X edition. 394887



- TTORTUN4L
by:
2016 Nissan Frontier

Got the Parts really quick. Installed this morning . Took longer to find the Nissan torque specs for the bolts than to install the parts. Another great experience with etrailer. 390697



- TTORTUN4L
by:

It was a pleasure doing business with etrailer. What I am not happy about is the cost of this product. I searched on line and the price was the same on many sights. Unreal, for a set of two rubber kongs, you know the the toy dogs play with. That said, I have used this product before and am happy with them. Just not the exorbitant price. 336599



- TTORTUN4L
by:
2011 Toyota Tacoma

Awesome product, does exactly what it's designed to do. I would recommend this product to anyone that owns a truck and loads their truck bed with heavy stuff periodically. 287249


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Ask the Experts 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...
    view full answer...
  • Suspension Enhancement for 2019 Nissan Frontier 4x4
    We have Timbren suspension enhancement kits that fit your 2019 Nissan Frontier 4x4 with the part # TTORTUN4L but we do not have any SumoSpring kits that fit your vehicle. This kit will give you an additional 3,000 lbs of suspension support.
    view full answer...
  • Are There SumoSprings for a 2018 NIssan Frontier
    I do have an option but I just checked with Super Springs, the manufacturer of SumoSprings and they do not offer any kits for a 2018 Nissan Frontier. Instead, I recommend the Timbren Rear Suspension Enhancement System part # TTORTUN4L. The Timbren Rear Suspension Enhancement System is very similar to the SumoSprings Solo Custom Helper Springs in how they install and operate but the Timbrens will actually offer more support. The Timbrens also like the SumoSprings won't affect the unloaded...
    view full answer...
  • Comparing the Timbren Suspension Systems TTORTUN4L and TORTUN4 for 2019 Toyota Tacoma
    The correct Timbren Rear Suspension Enhancement System for a 2019 Toyota Tacoma is part # TTORTUN4L if you have three leaves in the rear leaf spring pack or part # TTORTUN4 if you have four leaves in the rear leaf spring pack. Therefore, the main difference is in regards to fit. The Timbrens are going to do an excellent job of helping to reduce rear end sag/squat while loaded or towing. They also won't affect the unloaded ride quality and they are easy to install which makes them the perfect...
    view full answer...
  • Installation Instructions for Timbren Suspension System on a 2012 Nissan Frontier Pro4X 4x4 Off Road
    To install the Timbren Rear Suspension Enhancement System, # TTORTUN4L, on your 2012 Nissan Frontier Pro4x 4x4 you will need to safely raise the vehicle to allow the axle to hang freely, then loosen the axle u-bolts and remove the OEM rubber bump stop. Next, install the lower bracket from the Timbren kit where the OEM bump stop was. Finally, tighten the U-bolts and safely lower the vehicle. I have attached installation instructions for you to review.
    view full answer...
  • Height of the Rubber Spring of the Timbren kit part # TTORTUN4 and # TORTUN4L
    I went out and pulled both the Timbren kit part # TTORTUN4 and # TTORTUN4L from our warehouse to measure them for you and found that they both sit exactly 3-3/4 inches tall.
    view full answer...
  • Is Weight Distribution Needed for 2019 Toyota Tacoma That Has Rear Suspension Enhancement Installed
    Starting with the rear springs for your 2019 Toyota Tacoma, I highly recommend the Timbren Rear Suspension Enhancement System # TTORTUN4L, which will offer excellent rear suspension support for your heavier loads. The durable Aeon hollow rubber springs simply replace the factory bump stops for an easy installation and a maintenance-free lifespan thereafter. The system has a combined weight capacity of 3,000 pounds. I have attached a short video demonstration and a full install video...
    view full answer...
  • What Is the Installation Like for Timbren Springs on a Toyota Tacoma
    The install for the Timbren Rubber Enhancement Springs, part # TTORTUN4L, is fairly easy, just one bolt and nut to install the spring and bracket. It bolts in the same location as the factory bump stop. You will just need to jack under the frame of the truck to relieve the tension on the suspension. Remove the bump stop, 1 bolt and nut, and finally install the Timbren spring again with 1 nut and bolt. Repeat on the other side. I have included a link to the directions. I have added links...
    view full answer...
  • Will Timbrens Void Warranty of a 2015 Nissan Frontier
    Timbrens like the part # TTORTUN4L would not void the warranty of your 2015 Nissan Frontier as long as you install them properly. When you install an aftermarket part on your vehicle you are protected by the Magnuson–Moss Warranty Act. This act states, in part, that unless the installation and the part caused a problem then the warranty cannot be voided. I recommend looking it up online.
    view full answer...
  • Timbren Jounce Spring Installation in 2012 Toyota Tacoma 4X4 non-Pre-Runner with 3-Leaf Springs
    The Timbren rear jounce spring kit # TTORTUN4L is the correct one for the 2012 Toyota Tacoma 4X4 non-Pre-Runner that has the OEM 3-leaf rear spring suspension. The bottom leaf of these springs can be seen in the linked photo that shows a customer's installation. You'll notice that the bottom leaf does appear to be thicker than the other two.
    view full answer...
  • Do U-Bolts of 2012 Toyota Tacoma Get Removed for Timbren Installation
    To get the mounting plate for the Timbren of part # TTORTUN4L onto the suspension of your 2012 Toyota Tacoma will require the temporary loosening of the U-bolts. This will allow you to slip the U-bolts over the plate so that it can be secured after removing the factory bump stop plate. I attached a picture we got sent from a customer who installed this kit that shows it installed.
    view full answer...
  • Will Timbren Suspension Enhancement Fit 2017 Toyota Tacoma TRD Pro
    The Timbren Rear Suspension Enhancement System # TTORTUN4L will fit your 2017 Toyota Tacoma as long as your rear suspension has leaf springs with 3 leaves. There was a change with the Toyota suspension and some of the trucks have 4 leaves which the system will not work with.
    view full answer...
  • Timbren or SumoSprings Suspension Enhancement Recommendation for a 2016 Toyota Tacoma
    For your 2016 Toyota Tacoma both the Timbren part # TTORTUN4L and the SumoSprings part # SSR-610-40 are confirmed as a fit. I would recommend going with the SumoSprings though as we have found they provide a smother ride quality than the Timbrens which tend to be a bit harsh. Both should easily last the lifetime of your truck, but the Timbren has a limited lifetime warranty whereas the Sumo only has a 2 year warranty. I would not need to see pictures of your current bump stops.
    view full answer...
  • Does Timbren Rear Suspension Enhancement System TTORTUN4L Fit 4WD 2017 Tacoma TRD
    The Timbren rear-axle jounce spring suspension enhancement kit # TTORTUN4L is a confirmed fit on the 4WD version of the 2017 Toyota Tacoma TRD Sport so long as it has 3-leaf springs in the rear suspension. This kit offers no-drill installation and the springs mount in place of your factory bump stops.
    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...
  • Using a Weight Distribution System to Level a 2006 Toyota Tacoma and Cargo Trailer
    The best way to reduce sag at the rear of a vehicle when towing a trailer is to use weight distribution. I recommend a system that has built-in dual cam sway control to prevent trailer sway before it starts. For the right sized system, you will need to know the tongue weight and gross trailer weight of the trailer when it is fully loaded and ready to tow. For example, if the tongue weight of the trailer is 400 pounds, you would need a system with a 200 to 600 pound tongue weight capacity....
    view full answer...
  • Timbren Helper Springs for a 2014 Nissan Frontier Desert Runner with Leaf Springs on Top of Axle
    Timbren helper springs # TTORTUN4L are designed to fit on 2014 Nissan Frontier 4x4 trucks that have the leaf spring stack on top of the rear axle. Take a look at the installation instructions I have linked for you for more on how they install. I have also linked a review video on these springs and a link to our informational article on Timbren springs.
    view full answer...
  • Suspension Enhancement for a 2010 Toyota Tacoma 4x4
    Heavier springs are going to create a stiffer ride all the time and not just when there is a load in the truck. Adding Timbren springs to your 2010 Toyota Tacoma will pretty much keep the unloaded ride the same and then offer support and improve the ride when under load. Timbren springs # TTORTUN4L would be the way to go. If you need to level the bed side to side as well because you carry different loads all the time, air bags may work better for you. You could use Firestone Ride-Rite...
    view full answer...
  • Will Timbren Kit for 2015 Nissan Frontier Help Reduce Vehicle Suspension Sag When Towing
    The 3,000 lbs of additional suspension support that the Timbren kit part # TTORTUN4L can provide will make a big difference on your 2015 Nissan Frontier Crew Cab which this kit is confirmed as a fit for. This gives the rear suspension an additional 3,000 lbs of support (does not add weight capacity to the vehicle though) which will help your setup quite a bit that has a cap and a 3,100 lb trailer being towed. You'll see a dramatic reduction in suspension sag.
    view full answer...
  • Is a Rear End Alignment Required After Installing Timbren Springs on a 2012 Toyota Tacoma 4x4
    When installing Timbren helper springs # TTORTUN4L on a 2012 Toyota Tacoma 4x4 the vehicle only gets partially raised so the axle cannot hang freely so it would not be able to get out of alignment. But you could still go an get a rear end alignment for peace of mind if you wanted to. I have included a link to the installation instructions for this kit for you.
    view full answer...
  • Installation Of Timbren Rear Suspension Enhancement System On 2010 Toyota Tacoma
    There should be no interference from the exhaust when installing the Timbren Vehicle Suspension, part # TTORTUN4L on your 2010 Tacoma. The TTORTUN4L is designed to replace the bump stops you have installed on your Tacoma. If you are installing a different system than the TTORTUN4L your question came from let me know and I can do some research to see if there is a solution that works for you.
    view full answer...
  • Does Timbren Kit that Fits 2018 Nissan Frontier Raise Suspension Height
    The Timbren kits like the # TTORTUN4L that you referenced do not raise the suspension of the vehicles they install on. They only reduce sag when the vehicle has weight on it from either a trailer tongue or cargo. There will be about 1.5 inches of suspension movement before the Timbren contacts the vehicle frame/axle so that the unloaded ride quality isn't affected. This also means when unloaded the height is not changed.
    view full answer...
  • Is Timbren Suspension Enhancement for 2019 Nissan Frontier Compatible With Lifted Truck
    You can install the Timbren Rear Suspension Enhancement System # TTORTUN4L on your 2019 Nissan Frontier with a suspension lift. In order to do so, you need to add the appropriate amount of spacers that will allow you to wind up with between 1/2" and 1-1/2" of space between the spring and its contact point above the axle. The spring itself measures 3-3/4" tall so you can use that as a guideline to determine how many of the following spacers you will need: - Timbren 1" Spacer # A25723-90AH00 -...
    view full answer...
  • 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...
  • 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...
  • Solution for Rear Sag on Nissan Frontier with Travel Trailer Hooked Up
    We do have a nice selection of suspension enhancement products available for your 2015 Nissan Frontier, such as the TorkLift StableLoad Rear Suspension Upgrade # TLA7311 that you mentioned, however I'm not sure that any of them will provide you much more support than you are already getting with the Timbren Springs like # TTORTUN4L installed. Even though you said that you aren't really having any issues with sway or bounce, the best solution for the rear sag you are experiencing is with...
    view full answer...
  • Is a Longer Bolt Required When Installing Timbren on a Lifted Vehicle
    We don't carry the longer bolts for when you use a lift spacer like the part # A25723-90AH00 which a Timbren like your # TTORTUN4L. You will need to find a local hardware store that can provide you with a bolt that is 1 inch longer than what you have. That's what we have had to do when we installed Timbrens on customer cars with lift spacers.
    view full answer...
  • 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...
  • Axle U Bolt Torque Recommendation for a 2020 Toyota Tacoma for Timbren Install
    When installing Timbren suspension enhancement kits like the # TTORTUN4L, U-bolt and the straight bolt attaching the spring to the bracket doesn't have a specific torque rating as they're usually 'torqued to yield' meaning they're torqued down until they begin to deflect. I did contact Timbren who confirmed this. Included are additional video resources regarding this solution.
    view full answer...




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Info for this part was:

Expert Research:
Robert G
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Chris R
Installed by:
Cole B
Installed by:
Robert C
Updated by:
Mary E
Test Fit:
Shane H
Video by:
Jonathan Y
Video by:
Michael B

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