SuperSprings Intl Vehicle Suspension
- SSR-307-40
Highlights
- Custom Fit for Your Vehicle: Mounts to existing attachment points
- 1,000-lb Load Support: Levels your ride when towing or hauling so steering and braking stay steady.
- Smoother Ride Over Bumps: Cushions shocks and vibration so the truck feels more stable and controlled.
- No Maintenance Needed: Works without air lines or adjustments—just install and drive.
- Progressive Load Control: Soft for light loads, firm up to 80% compression under heavy weight.
- Simple No-Drill Install: Bolts in place easily using factory mounts for quick DIY setup.
Features to know about
Stay Level Under Load: Up to 1,000 lbs of Rear Suspension Support
When you’re towing a trailer or hauling gear that makes the rear end sag, these helper springs step in to keep things level. The SumoSprings Solo Custom Helper Springs add up to 1,000 lbs of support at 50-percent compression to help your factory suspension maintain its ride height and stability. By keeping the truck level, you get steadier steering, proper headlight aim, and more confident braking even when the bed or hitch is loaded down.
Smooth Out the Bumps: Progressive Load Control
Rough roads and uneven loads don’t have to beat up your ride. These microcellular urethane springs cushion bumps and shocks with a progressive load control design that adjusts as weight changes. They compress easily with light loads for a softer feel and can compress by as much as 80 percent under heavy loads for added support. The result is smoother handling when you’re empty and solid stability when the weight piles on.
Stay Steady in Crosswinds and Turns: Independent Spring Action
When crosswinds or curves throw the vehicle off balance, the springs work independently to keep each side steady. This helps reduce body roll and sway so the vehicle feels more planted through turns or when towing on uneven roads. Uneven loads are no problem either—each spring automatically compensates to keep your ride level.
Built Tough for Long-Term Use: Maintenance-Free Design
These microcellular urethane springs are made to handle real-world conditions without fuss. They resist damage from oils, road salts, and UV rays, and they work in temperatures from -25 F to 200 F. With minimal lateral expansion, they compress straight up and down so they won’t rub or snag nearby parts. There’s no air pressure to monitor or tubing to run—just a simple, no-drill installation that adds dependable support without ongoing maintenance.
Specs
Weight and Capacity
- Weight capacity (at 50-percent compression): 1,000 lbs
Warranty
- Limited lifetime warranty
- 30-Day satisfaction guarantee
SSR-307-40 SuperSprings Sumo Springs Solo Rear Vehicle Suspension Kit for Trucks
Installation Details 
This Product Fits The Following Vehicles
Gwendolyn Y.
4/15/2025
Sounds like the perfect set up! Are you loading up any fun gear in the trailer?