Timbren Rear Suspension Enhancement System

One of the timbrens appeared to be installed once and removed. Box said it was 2018 on it.1503551

Click to Enlarge

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.

-- Jenny N - 01/26/2023

156483

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.1053965

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.

-- Heather A - 06/07/2021

115066

Weight Distribution Hitch

5 Tips to Confidently Choose Your Weight Distribution Hitch

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.

David - 06/04/2022

141200

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.560925

Click to Enlarge

Click to Enlarge

Click to Enlarge

Click to Enlarge

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.

Charles - 09/02/2019

60705

The product works as advertised. I have a 2018 Toyota 4RUNNER SR5 Premium 4wd. I tow a Coleman Utah camper that weighs approximately 3500lbs with a tongue weight of about 300lbs when fully loaded. Before installing the Timbrens the vehicle would sag about 3.5 inches measuring from the ground to the bottom of the hitch receiver. It was very noticeable. Handling was OK but not great. After installing the Timbrens the sag is only about 1 inch. Handling has improved. I have not noticed any difference when not towing. I am 71 years old and did the installation myself with no assistance. The online videos are very helpful. The hardest part for me was removing and replacing the tires. They are heavy for someone my age. Installing the unit with the tires on was not an option on my vehicle. One note on the install, when attaching the rubber bump stop to the bracket a vice to hold the bracket in place is very helpful. It takes alot of muscle to tighten the bump stop to the bracket completely but it will tighten. I used a half inch heavy duty socket wrench with 3/4 inch deep well socket so that I could apply sufficient torque to tighten the unit. Attaching the assembled unit to the vehicle was not difficult. A 13mm ratchet style wrench will speed things up but is not necessary. So far I am very pleased.1320367

by: So Cal Ocean View06/24/2016

2006 Toyota4Runner

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.264664

Click to Enlarge

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 recommend826013

Click to Enlarge

Click to Enlarge

Click to Enlarge

Click to Enlarge

Click to Enlarge

by: Andy 01/25/2023

Like It! Great simple solution to keep the rear end up when towing.1507455

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 later499383

Click to Enlarge

Click to Enlarge

Click to Enlarge

by: Ron E.07/05/2020

Toyota4Runner

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.830978

Click to Enlarge

by: Tom 09/11/2022

Fairly easy install. Timbres makes quality stuff.1402075

So far so good. I had to use them once and the back end didn't sag as bad. No real drive time on them yet. Install was easy. First etrailer said they would come Friday, I got them Thursday, great. Next, on one of the bump stops it wasn't machined properly. At first, I thought it was me, so I had my neighbor look at it and he said somethings wrong. After about 20 minutes he had it working. I would have returned them if it wasn't for him. What needed to be fixed was the screw couldn't go all the way in.1250872

by: Edwin09/18/2021

2016 Lexus GX 460

excellent upgrade to the stock rubber bumpers in my 2016 Lexus GX 460. The stock has a tendency to drift when hit with cross winds above 60mph. This Timbren front suspension enhancement eliminated that. The SUV is more composed even when driving on rough pavement. Cornering is more secure for a tall SUV such as the 460 with high center of gravity.
It's also easy to install. Jack up the vehicle until the rubber bumper clears the metal then unscrew it. Screw the Timbren in.1163622

I installed these rear Timbrens on my 18 Toyota 4Runner. The installation was simple with the right tools and took me about 30 minutes. All you do is Jack up one rear wheel, remove the wheel. Remove the OEM bump stop with a 12mm wrench. Install the Timbren using a 13mm wrench into the existing holes and make sure the bottom of the Timbren lines up with the axle. Tighten and reinstall the wheel. Repeat on the other side. Great packaging, great product, highly recommended to reduce rear squat.1210206

by: David 11/30/2021

Lexus

I installed these on a 2019 Lexus GX460. Installation was somewhat easy with the wheel still on the vehicle. I just jacked up the frame to give me more space between the wheel and the wheel well. Took approximately 45 min to remove the old and install the new. The everyday ride was not effected. The vehicle has less sag in the rear now while towing the RV. They are working great!1214656

Easy install. A little off center. Made for a nice ride when loaded down.1434483

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!!704185

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?

-- Victoria B - 09/25/2019

61509

by: Mike P. 07/19/2016

2016 Toyota4Runner

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! 273549

Its been 2 years now and all is still working well.

Mike P - 07/27/2017

26665

by: Bryan08/02/2018

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.549083

Still doing their job without me needing to think about it, which is awesome.

Bryan - 08/02/2019

58533

by: Bill 07/09/2021

2018Toyota4Runner

Purchased this product last summer for my 2018 Toyota 4Runner. I pull a small pop up camper trailer and did not like the handling before I installed the Timbren. With this installed, it feels more solid during towing on Michigan's rough pavement freeways, and there is no effect on the suspension when unloaded, not towing. It dampens, but does not reduce, the suspension travel at the extreme, so it may be noticeable during heavy duty off roading. All around handling is improved. This should be a standard option from the dealers.1087793

by: John09/14/2018

2006 Toyota Sequoia

I’ve had these for a year on my 2006 Toyota Sequoia. Purchased them after taking my wife’s horse on a long road trip where we damaged the trailer jack on our horse trailer. The Toyota has a sport suspension and would bottom out when we hit big bumps. These keep it from bottoming out and also help prevent trailer sway. Affordable and very easy to install. Unlike sway bar nothing to hook up when towing and it doesn’t change how the vehicle drives. Completely satisfied!565135

by: Mark V.03/12/2020

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. 765469

by: Chad01/18/2018

Lexus GS 460

Purchased for Lexus GX460. Solves rear sag problem when towing with medium to heavy trailers. I don’t notice any difference in the ride when not towing a trailer with the helper springs. Should really come standard with the vehicle I’m the first place in order to utilize the towing capacity. I would highly recommend this cheap fix.468046

by: Todd T08/23/2019

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.692805

This product is everything it is advertised to be and more. I needed to transport a 380 pound ALS wheelchair to the VA for an evaluation. A 450 mile round trip. With a total hitch weight at almost 500 pounds with the carrier and the chair, my little stock 2004 4x4 4-runner was not up to the task. I just happened to see your product doing a search for suspension products and felt it may work for me. It is perfect!!!! Kept the rear from sagging, felt great over the bumps and keeps the natural suspension feel even with all the extra weight on the back. They are very simple to install and a perfect addition to my suspension. It will stay for the life of my vehicle...Thanks 3-3-2016239325

Easy installation. Did not even have to remove rear wheels to install. Had to slot fully to the rear for center contact to axle 2012 4Runner1192615