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6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your Toyota FJ Cruiser. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.
Features:
Specs:
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.
The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits, 1" above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride that you are used to.
Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape increases resistance, stiffening the suspension and keeping your vehicle level.
Each hollow rubber spring works independently to support the driver's side or passenger's side of your vehicle. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when you are hauling off-center loads.
Because the vehicle handles better with the springs, less turbulence will be passed along to the trailer, and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi), because the movement from the trailer is not transferred to your vehicle. This also works to make the sway subside more quickly.
Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.
Timbren'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.
Average Customer Rating: 4.7 out of 5 stars (6090 Customer Reviews)
6,000-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.
I modified my 2001 Toyota Sequoia to make it a camping rig for my wife and I. This included a water tank and roof top tent. The back end rode heavy and corners were a challenge at speed on the highway. I got these and they were easy and pretty quick to install. It made a noticeable improvement in the ride.
Shipping was smooth and fast, install was smooth and fast, performance - wow what a difference! We notice a difference in our Toyota Sequoia off roading, and hauling a trailer while fully loaded down. We’re impressed and pleased with our purchase.
They work great. Hauled my camper about 3hrs with a 325# tongue weight and the 4runner sat flat and drove great. I like these better than air bag and they install in less than 30mins. No more inflating and deflating then inflating and deflating for the trip home.
These are a huge improvement over the leveling kit I was using. I now have very little sag and it handles bumps very nice when towing. When not towing it's a little jarring when you hit bumps. I have gotten used to it. The only improvement that they could do is make it easier to swop back to the factory bump stops, like a quick release system.
Product came securely packaged and complete and quick. Took about 45 mins to install. I bought this to try to reduce the 3 1/2 inch sag at the hitch of my Lexus GX460. It did that well. I now only sag 2 inches that I feel is acceptable. The trailer has about 484 lbs weight. The ride doesn't seem affected and towing bounce(porpoising) is gone. Thank you etrailer.
One of the timbrens appeared to be installed once and removed. Box said it was 2018 on it.
Jenny N.
1/26/2023
The second spring does look rough and I will have our Customer Service team reach out to you. I am not sure what the 2018 refers to however I know that it is not a manufacturing date. I checked and we have had recent stock checked into our warehouse. We do not have any remaining stock from 2018.
We had these installed about 1 year ago on a 2015 Lexus GX460 to help with towing a horse trailer. On the stock suspension, there was a noticeable sag on the back end of the car when towing that was likely "fine" but was concerning for us over the long term.
Since installing this suspension system we are more confident towing a heavy load behind us. It did make things slightly "bumpier" when not towing anything, but we probably wouldn't have even noticed if we weren't looking for it.
The simple fix for the sagging situation. With these new Timbren 'bump stops' in place, both my camp trailer and vehicle *(2006 5 Runner---better than a 4 Runner) ride level and smooth...and even looks cooler than cool.
The system works well.
It did its job which prevented down travel of the rear suspension. However it caused too harsh of a ride. The weight distributing hitch was enough for me
I tow a 16' utility trailer with a 2017 4Runner and this upgrade is absolutely outstanding! Noticeable difference from hookup to the very first bump. Highly recommend if you tow with a 4Runner (or the like)!
Timbren SES for 2020 Toyota 4Runner
Bolt for bolt replacement of OEM bump stops. Easy installation when wheel is removed. Instantly improves ride and eliminates bounce and sway, without making ride harsh or stiff.
Definitely recommend
Received the product and installation was very easy. The longest thing to do in the process is taking your tires off. Also make sure you have a vice or c- clamp because to tight the rubber piece to the bracket takes a lot of torque. Have not been able to test it will update my comments later
Works pretty well. Does stiffen the factory ride considerably when not hauling a load.
Helps stabile the 4Runner when towing.
This is an excellent product that helped level my 4runner while pulling my travel trailer. By preventing the back end from sagging, the front wheels stay fixed to the road for proper steering. I believe the 3/8 bushing was too small and I required 1/2 inch instead. Kaylyn at etrailer.com went above and beyond their normal customer service and got me in touch with the sales rep for Timbren, who promptly sent me the right size in time to make my big trip. He worked with me to find the right size for my after-market lift kit. In a time that companies are indifferent at best, etrailer.com makes the customer feel important in a sincere way. I also love e.trailer's selection and fast shipping.
Definitely a simple and easy to install option to stiffen up the rear of a gx460 my boat is at the maximum capacity of 6500 lb it definitely has a better ride stance and does not squat as much with these installed. I am thinking that I need the airbags in addition to get a little more of a buffer or cushion so that I do not destroy the bearings in the rear end. I probably also need a weight distributing hitch. I feel the price is reasonable for the rear however find that the front timbren kit being the same price is a bit disproportionate the front bump stops are much more simple and do not require the additional manufacturing of a steel support bracket. The price is reasonable for the Rears. I was however disappointed to find that the hardware sent with the kit did not conclude stainless steel bolts. I reused the factory bolts. I also found that I needed an extra washer to completely tighten without a gap. I was able to install these without taking off the tires in about 15 minutes. For their simplicity they are definitely worth the upgrade. I would hope that timbren would offer a lower price for the front units and for the price of the rears give proper stainless steel Hardware instead of zinc plated that will Rust quickly.
Heather A.
6/7/2021
Thank you for your review. It would not be helpful to use both the air bags in the coil springs and the timbrens. If you are still experiencing sag, I recommend to use a weight distribution. I have attached a helpful link to help choose the best weight distribution system for your trailer and the ion of weight distribution hitches we have available.
Helpful Links
David
6/4/2022
After 1 year Still happy with my purchase. I have both the Timbren rear suspension enhancement as well as the Air lift system - the combination has made my GX460 much more stable when towing my boat that is at the Max Capacity for the truck. I would definitely install again If I had another GX. I find these to be a great value.
These worked great on my 2003 4Runner Limited. I can tow my 16 / 7 ft. trailer with very little squat on the rear axel ... The install was super easy and I didn't need a jack-stand... Just a wrench... That's It !!
I took some heavy dips on some Mexican roads with a 7,000 lbs trailer (700 lbs tongue weight). Also the rear cab had 500 lbs..... I was doing 55 mph and I believe it saved me from a hard impact.
Courtney B... (the rep)... Recommend the product and I couldn't be happier!
Mike P.
7/27/2017
Its been 2 years now and all is still working well.
Working great. I had read reviews about them being too stiff whem you aren't pulling a trailer, but it seems like they softened up a bit after first putting them on. I felt a few hard jolts going over speed bumps and such the first few days, but now I don't notice them at all when I don't have a trailer attached. They are still improving the ride with a heavy trailer.
I'd give 5 stars but my mechanic neighbor had to help me install them because there was something wrong with the bolts that came in the package. It was a year ago and I can't remember the details. Without him I think I could have returned them and gotten a fix and installed them by myself. It's a very simple install when all the parts are in good shape.
Bryan
8/2/2019
Still doing their job without me needing to think about it, which is awesome.
Easy install. Haven't hauled my trailer yet.
I am dealing with Timbren. The washer for mounting the rubber spring to the mounting plate clearance hole is too small for the bolt diameter. The washer is not something you can get out without damaging in my opinion. The bolt also will not thread completely into the mounting plate because of poor threads ( not tapped correctly). Galling of bolt if you try to tighten. Very poor QC or inspection at Timbren or wherever. Once again, working eith Timbren on this. Maybe you should check you kits at etrailer!!
Victoria B.
9/25/2019
I pulled the kits we have in stock and they check out fine. The washer inside the spring had the same diameter as the spring for the bolt. Could you send in a photo of your kit?
I put TTORSEQ on the rear of my 2003 4Runner Sport, I had noticed the 4Runner had settled over the years particularly in the rear when I tow a Chalet camper. I was looking for helper springs or replacing the rear springs (very expensive). I was not aware of this type of suspension support but it came up on a Google search.
They work great! There is a significant difference when towing the camper.
ONE recommendation for Timbren. In the installation instructions include torque values for the bolt attaching the bump stop to the bracket. I was surprised at how much torque was required and initially thought Timbren had sent me the wrong bolts - they had not.
Installed on a 2004 Toyota 4Runner. We tow a 22-foot Pathfinder bay boat with it. I previously had airbags on it but they kept breaking and leaking. Installed these and they work perfectly! No maintenance and they get the job done. Very little squat in the suspension with the boat hooked up. Easy to install too. Don't notice them at all when the vehicle is unloaded.
Item arrived nice heavy duty brackets and hardware supplied Very thick rubber springs. Should install very easy
Buddy
2/7/2015
Install was a breeze. Its been a year and I can definitely say they make a difference. I used to go over some deep pot holes or a deep depression in road surface and my teeth would jar. Now when this happens no bad reaction as before install.Very happy with them.
Timbren helper bump stop was very easy to install. My boat trailer rides much better after installation. The boat and trailer combined probably only weigh 4200 lbs but the tongue weight is slightly heavier than I would like. Suspension is not being pushed down to the point that affects headlight alignment anymore. Great easy system that allows for normal and comfortable ride when not in use.
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Charles
9/2/2019
Timbren are working fine. Towing is much more controlled. I am glad i purchased them. I don’t notice any ride difference when running empty.