This SES Suspension Upgrade fits the trailer suspension of a heavy-duty highway trailer with an outboard spring or aluminum frame. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit. We’ve engineered our hollow rubber springs to deliver a progressive spring rate. In other words, the more weight that pushes down on the rubber springs the harder they work to prevent sag and stabilize the load.
This kit is rated at 15,000 lbs capacity. Even though you’re increasing the spring rate by adding this upgrade, this does not increase the GVWR (Gross Vehicle Weight Rating). Please make sure that the load does not exceed the GVWR set by the manufacturer.
- Eliminate Vehicle Squatting & Sagging
- Cushion Road Shocks
- Improve Handling
- Satisfaction Guarantee
- Lifetime Warranty
Universal Applications TRAILER HIGHWAY TRAILER HEAVY DUTY