This SES Suspension Upgrade can be adapted to fit the front suspension of most Sterling & Freightliner heavy-duty conventional series trucks (see below for full list of applications). 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 front-end sag, and help stabilize the load.
This kit is rated at 20,000 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
2011-2021 Freightliner 108sd All Models
2002-2021 Freightliner M2 106 Leaf Spring
2002-2015, 2017-2021 Freightliner M2 106 Air Spring
2002-2021 Freightliner 112 Leaf Spring
2002-2021 Freightliner 112 Air Spring