Timbren Rear Suspension Enhancement System
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2014 Nissan Pathfinder
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2014 Nissan Pathfinder
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When heavy trailers or bed loads make the rear end sag, the Timbren Rear Suspension Enhancement System adds up to 6,000 lbs of support above the axle. The hollow rubber springs work with your existing suspension to keep your ride level and maintain steering, braking, and traction. With the truck sitting level, you get better control, safer handling, and proper headlight aim even when towing or hauling serious weight.
These hollow rubber springs act as cushions between your frame and axle, soaking up bumps and rough terrain so your ride stays comfortable. The progressive spring rate design means they stay soft with light loads but stiffen automatically as weight increases. That extra give helps prevent bottoming out while extending the life of your factory suspension components.
Each spring works on its own to support the driver and passenger sides separately. This independent action reduces body roll when cornering and helps keep you stable when hauling uneven or off-center loads. When wind or trailer sway hits, the springs help your vehicle stay planted so both you and your trailer track straight down the highway.
The system includes two Aeon hollow rubber springs with vehicle-specific brackets and hardware that replace your factory bump stops. They bolt directly to the frame rails above the axle with no drilling required. Once installed, there are no air lines or compressors to manage—just dependable load support that adjusts automatically whenever you hook up a trailer or load the bed.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi there. I'm Michael with etrailer.com. Today, we're gonna take a quick look at this Timbren rear suspension enhancement system. These are Aeon hollow rubber springs. These are gonna replace the actual bump stops on the frame of your motorhome to help improve the handling and safety of your motorhome. These do have a custom fit bracket, so they are going to work with several different models.
Your early 2,000 motorhomes. Including specific year ranges of the makes and models that you see on the screen there. To ensure that these are going to work for you, I would highly encourage you to come to etrailer.com. We have a vehicle fit guide, so you can just select your year, make and model of your motorhome. And it will ensure that these are the right fit for you.
Or if they're not, we'll have other components that will be a fit for your motorhome, to help you make sure that everything's gonna work well for you. But these are specific brackets, so it's gonna be very easy to get these installed right in place of those factory bump stops. Basically, just have to pull those factory bump stops off, put these in their place, and you're gonna be ready to go. You're not gonna have to worry about drilling, or customizing, or anything like that. So, these are gonna do a really good job.
Providing additional support to your motorhome. To give you a more smooth and more comfortable ride as you're going down the road. These do have a weight capacity of 6,000 pounds. Now, when you hear that, it's very tempting to think that that means that these are going to increase your motorhome's carrying capacity by 6,000 pounds and that's not the case. There's no vehicle suspension enhancement system that I'm aware of that will increase your vehicle's or motorhome's carrying capacity, because this is just one component in a whole setup system.
So, these are going to be less like a second set of hands that's helping you lift more weight. Think of them more like a back brace. So, they're there to just kind of help give support. Make sure that your suspension is not going to be taking too heavy of a load. It's gonna help to just improve the suspension system. It's not going to help it carry any more weight. These are a rubber spring. So, that's gonna be really nice in ensuring that it's going to give us a nice cushion effect. So if we have a light load, our tanks are getting close to being empty, that sort of thing, they're not gonna engage very hard. They're gonna be nice and soft to kind of give us that more comfortable cushion effect. If we have full tanks of water full for the weekend or whatnot, these will help to engage a little bit more firm, more weight we put on them. So, it would give us a little bit more support to compensate for that heavy load. These will act as shock absorbers. So, as we're going down the road, if we hit potholes and that sort of thing, we're going to take the brunt of those bumps and shocks. So, it's gonna make it a much smoother ride for us, and help to extend our suspension's life. These do work independently. So, there's gonna be one on your driver's side, and one on your passenger side. And again, they do absorb that shock and weight independently. So, you have all your water tanks on one side. This side is going to get firmer to help support that weight. And the other side is not gonna be affected at all, so it's still available to have that nice light, shock absorbing capability. So it's gonna be really nice, especially for helping to reduce your body roll when you're swerving or taking corners. It's gonna help to work independently to make that a nice, smooth ride for you to help with your motorhome. Obviously, motorhomes tend to be very top heavy, so you get a lot of sway. These will help to alleviate some of that, so that you get a little bit more balance to feel like you're more in control. These do come with a limited lifetime warranty. So if for any reason, once you get them installed, they're not doing what you thought they we're gonna do, you can return them. You can always reach out to us. We're always happy to work with our customers. Make sure that you're getting a good quality product. But overall, I think you're gonna be very happy with this. There are several other options that you can add on in addition to these, to help with that stability. There's sway bars and that sort of thing. So, this might not be the end all of your enhancement process. There might be others that you want to consider adding on as well. But these are gonna do a good job of helping to absorb some of that shock for your motorhome, and help that stability. So, really nice option here. If you do have one of those vehicles that this is going to fit. These are gonna be very easy to get installed, so definitely something that you can do on your own. You don't have to take it into a shop, or something like that. And it's gonna be a quick fix to help give you a little bit more stability, and comfort for your motorhome. So, that's gonna complete our look for today. Again, I'm Michael with etrailer.com. Thanks for watching..
Ratings & Reviews
Installed on 2025 Ford F550. Installation was easy took about 2 hours to do front and rear bump stops. Used the supplied spacer ended up raising rear about a 1/2 inch which was the same as front. Purchased these due to truck sitting 1 1/2 inches lower on passenger side when Host Mammoth was loaded ( scaled at 18,600 lbs. with all tanks full). Didn’t have any excessive sway or bounce just not sitting as level as I would like. Did notice truck hitting bump stops a few times on both ends hoping theses smooth out the occasional bottoming out. Will update after I’ve loaded camper and made a few trips.
I installed these on three different trucks in a year, a 24 F350 CCLB Gas SRW to use with a smaller 9.6 Northern Lite truck camper, but decided I wanted to step up to a DRW, as I bought Northern Lite 10-2 instead. I traded that SRW and put these on a new 24 F350 diesel dually. Took that truck and 4000lb camper coast to coast and back. This year I traded that 24 F350 on a 25 F450. The Timbrens needed a 1" spacer for the F450, as the spring blocks are different. I called Timbren, and they sent me the spacers and longer bolts free of charge. Three trips so far this year with the truck camper on the F450. Couldn't be happier with the Timbrens. They have about 3/4" space when not loaded, so there is free spring movement, and they help with sway and level when loaded. I also added overload spring blocks of my own making, similar to the ones Timbrens sells.
Jesse M gave me expert advice and answered all my questions regarding the Timbren rear suspension enhancement system. I ordered the Timbrens and it took me a little over half an hour to install myself. I absolutely love the way the Timbrens leveled my sagging truck and greatly improved the stability of my ride. I carry a 2003 Northstar tc1000 pop-up camper on my 8ft bed. I highly recommend the Timbren rear suspension enhancement system. I attached a before and after photo.
Feels like it was a real help on the suspension but need about a year to get the full opinion on different roads.
Received the Timbren SES kit in today's mail around 11:30AM, already installed on my 2024 F-150 pickup's rear differential before 3:00PM same day. Like always etrailer's fast delivery time and product info with installation video on your website are very helpful. 1st photo OEM bump-stop, 2nd photo OEM bump-stop removed, 3rd & 4th photo Timbren SES kit installed.
Accolade XT 35L - Timbren SES (TFRSDE - 12k support) loaded in the sweet spot.
These Timbrens should be used on F600 and F550 models. Do NOT use the spacers that come in the box. Just install the Timbrens without the spacers and you are good to go. When FULLY loaded (full gas/water and gear), the Timbrens should compress about 1/2”, which seems to be the sweet spot. The end results are as follows:
1. Better bump absorption and much better rebound. The inside chatter is more of a low sounding rumble and the suspension rebound is really quick.
2. Much better sway control and overall stability.
3. The drive feels more balanced front to rear. The rear drop was reduced by 1”. I think that allows the leaf springs and shocks to work in a more neutral position.
These are worth every penny and are a cheap “set it and forget it”way to improve your ride quality!
Added these to my F250 Super Duty. I carry a golf cart on a Diamond back bed cover. Can be a little top heavy. Perfect addition to my suspension- greatly reduced the sway.
Easy to install using basic hand tools, and stopped the "sag" when I hook up my Casita travel trailer
Helps prevent about 1/2" of sag with my 175lb-tongue weight trailer and easy to install.
Great product. The ride and body roll at the rear axle are notceably improved (1989 Ford E350 Class C RV , 27 ft). I give it 4 stars because the installation was slightly complicated due to the rear brake lines needing to be slightly bent to provide clearance for the U bolts supplied in the kit. Great product and wish it came in a 5000 lb version.
2,000 miles in on a trip from the east coast to the Canadian Rockies these work great while loaded and towing. Close to zero bounce while towing, I love them. Unloaded, however, the ride in my 2026 Tundra has gone south. There is a noticeable, abrupt stop of the units hitting the axle when going over any kind of bump. When I get home and back to regular driving, I may just take them off, its that bad.
I've had these on our tow rig for a year now and I added buy them again today if I needed them.these have worked much better than airbags for our coil spring rear suspension to handle the tongue weight of our trailer. The SUV sits level when the trailer is on and it handles bumps and sway better than the airbags did providing much more comfort to us in the vehicle. Unloaded, we don't really notice they are there, unless, we have all the kids and some friends loaded up and you will fell them work when going over bumps.i do all my maintenance on the vehicle's and inspect these regularly and I cant see any wear so far even though we've gone on 6 trips with our trailer with about 5000 miles doing so.
I cant say these are the best for every truck or SUV, but for ours it is the best and I definitely would recommend to others.
Order came fast and right. E-Trailer gets it the first time !!
Installed fit perfect
Well they are exactly what I thought it would be. Hard for me to say it's what I needed yet.
I installed them on a homemade trailer from a salvaged 2001 base model tacoma. Once I get finished building it out and have some weight in it I'll have a better idea. But from what I've seen so far on a couple test drives they should come into effect when needed.
For reference I building an Tacoma based trailer with an ARE Contractor topper with a Naturnest roof top tent on the very top. So to counter and sway these should be very helpful. At least I hope so. I'm not an engineer but I did stay at an Holliday Inn once.
The Timbren SES is a simple solution for rear squat when towing. When hitched to my 30' Airstream Globetrotter (8800 GVWR) with a tongue weight around 1200 lbs, my Silverado 2500HD had a bit more squat than is ideal. I shopped airbags but didn't want to spend ~$2K for the set up and didn't want the hassle of installation and forever chasing air leaks. The Timbren SES literally installs on the Silverado in about 15 minutes. So simple. No bags, no compressor, no wiring, no air lines, no leaks. And WAY less expensive to boot. Just returned form a 600+ mile trip and it towed flawlessly.
A very simple and straightforward installation once you get the oem bumper stops off (had a shop do that)
Timbren worked with me as I had a non OEM frame height (vehicle was lower than stock) to recommend the proper kit. Highly recommend contacting timbren if you are unsure of the proper kit to use. Ride is more stable. It does feel stiffer and less bouncy but am looking forward to seeing how it performs with my truck camper. Truck is a 1998 dodge ram 2500. Brake line over left side of axle needed to be secured to prevent damage.
The Timbren overload spring/bumper was east to install and did what it was supposed to do when I hitched up a camp trailer. These did not negatively affect the ride by any means and I don't have to worry about the troubles with air bags.
Stiffens and corrects kneel in rear end of 2023 Chevy Silverado 1500. You will notice a stiffening of the rear end suspension while unloaded, but it’s a fair trade off to prevent sagging and porpoising while towing. I found it easier to pull the rear wheels and work from the side than underneath the vehicle while installing.
The timbres bump stop is exactly the right height to meet the axel when the trailer is connected with all its weight onto the hitch. I have an Andersen weight distribution hitch and it levels out perfectly. The day picture is with the coach (Winn 2100bh) with factory equipment. The night picture is after the timbres are in place. Looks good.
It has been almost a year since I installed Timbren Suspension Enhancement Systems (DVF350 and DVR350R) on the front and rear of my 2003 Dodge RAM Van 3500. These bumpers replaced the OEM bump stops that were on my van. I like the Timbren bumpers much better than the OEM bump stops because they provide a progressively cushioned response for suspension compression when traveling over significant humps like speed bumps in a parking lot, or curb ramps into driveways. I did not like the abrupt stop the OEM bump stops provided when traveling over the same objects. I installed the Timbren rear bumpers first, and after a few months of use, I decided to add them to the front. In both cases, the front and rear Timbren bumpers were easy to install once the OEM bump stops were removed. Installation required reuse of the factory hardware. On my van, the Timbren bumpers are not always engaged. Under normal load and travel conditions the bumpers are relaxed and about 1/2” away from the suspension landing points. However, their presence is much appreciated and very noticeable when the van is carrying heavy loads or handling significant humps.
2022 F250 Super Duty. Super easy to install. I have about 3/4" gap between the spring and the plate. Time will tell how they impact the ride quality and how much sag they mitigate with my 5th wheel hooked up.
Great upgrade when pulling our 6500lb travel trailer. Helps with sag and control on the road on our Ram 1500. Change the stock shocks and if you choose, upgrade your stock springs, and you'll get the most out of your half ton.
Absolutely Pleased with the TIMBRENS. They were easy to install, and took less than an hour to install both. I noticed a slight stiffness in the ride as the rear bounced over a bad roadway. Towing is great, with a nice level and smooth ride. I am glad that I did not order the heavier duty Timbrens, than what was recomended for my truck. I believe the ride would have been too stiff. If you look at the photos showing the timbrens, the truck is still lifted in the rear, so what you see is a big gap between the rubber, and the steal plate. When the truck is lowered, there's 1" of space as it should be. BTW, I have been purchasing from etrailer for years now, and I have to say that I have never had any issues with any orders. They are my go to folks for all of my vehicle suppension stuff and trailer stuff. You can't go wrong with buying from them.
Easy install took about 20 minutes on my 2017 Ram 3500 SRW. Had about 1/2 inch clearance as recommended. Loaded up my 5th wheel (2350 hitch weight) and about 200 lbs of gear in the bed. Just got back from a 800 mile camping trip through mountains of TN. You can really feel the difference around those sharp corners and uneven surfaces. The truck felt firm and controlled not hard and jarring as some have mentioned. Going over those overpasses with the wonderfully smooth (Not) joists was greatly improved. The truck would squat and rebound again, with a firm controlled response. Driving without a load felt the same as before without them. I would highly recommend these! Ordering from etrailer continues to be my go to option!
Bought these for my 19 year old motor home to replace the old ones. They look great. I will post later how they work.
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