Manufacturer's Part Number:
Summit Racing Part Number:
Coil-Over Spring Inside Diameter (in):
Coil-Over Spring Inside Diameter (mm):
Coil-Over Spring Length (in):
Coil-Over Spring Length (mm):
Progressive Rate Spring:
Use with 2.500 inch main spring to prevent unloading up to 2.000 inch of spring to perch gap. Requires coupling spacer.
Choose In-store pick-up (OH, GA, NV) on our web site.
These Eibach ERS helper springs are used to keep the main spring tight between the perches when the suspension is at full droop. They keep the main spring snug and feature a very soft rate, on the order of 10 lbs./in. The Eibach ERS helper springs are just strong enough to push the main spring against the upper spring perch.