SuperSprings Steel Helper Spring for Chevy Express or GMC Savanna

SuperSprings Steel Helper Spring for Chevy Express or GMC SavannaSuperSprings rear steel helper springs for 2014 to 2026 Fullsized Chevy Express or GMC Savanna vans, 2500, and 3500. SuperSprings are a simple, bolt on, steel helper spring that can improve rear end sag and help stabilize sway & body roll. Great for heavy RV's, contractor vans, and towing. The patented roller system on the spring ends allow for good flex. As the factory springs flatten under load the helper spring ends are able to slide or roll to

Not built just for looks

The standard system will fit the 136" wheel base Promaster high roof van and the 159" wheel base non extended high roof vans

Worried about swivel adapters making the seat height in your ProMaster too high

Color match serged edges

These lowered bases ship from the USA and will ship within 1-3 business days

Plug it in and it is ready to go

5 inches or 7

Product capacity is 2800 lbs at 50% compression for the heavy duty unit

Promaster City rear SumoSprings or helper springs for the little vans

best regards - Steve in Washington

emptying is easy and hygienic

This is a complete kit ready to install with everything you need