To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
You load up for a weekend off the grid, knowing the weight will shift on rough trails. Instead of bracing for every dip, you drive with steady control and a smoother feel that lets you focus on the road ahead.
When you load up gear for a trip or haul tools for the job, the rear end can start to squat and throw off your handling. These springs compress as weight comes on, adding up to 1,000 lbs of support at 50% compression so your truck stays more level and controlled.
Rough trails and uneven pavement can make the back end feel harsh and bouncy. The closed-cell polyurethane design acts like a cushion, soaking up bumps and softening rebounds so the ride feels more settled instead of choppy.
You know that uneasy feeling when the rear starts to lean in a turn or shift in the wind. These springs firm up as they compress, helping reduce sway and body roll so the truck feels more planted when things get unpredictable.
Air systems can be a hassle with lines, leaks, and pressure checks. This setup is a one-piece solution with no maintenance needed. Once it is in, you can just drive and not think about it again.
Instead of stacking add-ons, this replaces your factory bump stops directly. It is a clean, straightforward upgrade that works quietly in the background without changing how you use your truck day to day.
Some setups only help when fully loaded, but these stay engaged lightly even when you are not hauling. That means less rear-end bounce on daily drives and more control whether the bed is empty or packed.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Ratings & Reviews
I still have alot of sag when towing. The ride is fine but doesn't really help with sag as much as the Tembren but ride better than the Tembren
Great people great company. Very friendly and professional
They were very easy to install. Less than 15 minutes. Good fit
They didn’t help with the squat when I hooked the camper as much as I had hoped for. I had hoped for a couple inches, I got about 1”. It does help with bounce when going over dips and bumps, making the bounce stop quickly.
They helped like they should with a loaded trailer. They do make the ride a little stiffer unloaded. They are so easy to install I may switch them out to the factory bump stops when not towing.
I installed these on a 2026 Ram 1500. I had the Timbrens on my 09 GMC Sierra 1500 and they definitely made the truck feel like you were driving a 3500. These Sumo Springs still give a change to the ride quality over the OEM feel but no where close to what the Timbrens were like. They only sit a 1/2" off the axle so you feel them engage but again nothing huge. The thing that is nice with these is you can remove them and install the OEM bump stops in less then 5 mins. Same with installing them. So my plan is to keep swapping them out as needed. You will need to jack the truck up slightly to get them in and out. No tools requires beyond the jack. Would definitely recommend if you tow occasionally. For reference my trailer is a 16ft enclosed and with a 750lb tounge weight I dropped 2 3/4" stock. With the Sumo Springs I only dropped 1 1/2". The control with them in is what I enjoy the most. Nothing like that feeling of hitting that huge dip on the highway and wondering if your going to bottom out. With the Sumo Springs is solid and no bounce.
Etrailer was awesome on helping me choose the correct Sumo Springs for my truck for what I was pulling!!!
Ease of installation. Once they were assembled, 5 minutes oe bump stop removed and new sumo springs installed. I will follow up when I tow my travel trailer.
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