Allstar Performance Spring Pre-Loader Wrench - Fits Body NG21 For Manual Transmission see PN

For Manual Transmission see PN 35369

1979-1993 GMC C1500

Hybrid ProLite

This kit is designed to convert OEM suspension to coilover suspension

Allstar Performance Spring Pre-Loader Wrench - Fits Body NG21 For Manual Transmission see PNPre loader allows use of a softer spring rate that is pre loaded at ride height. The pre loaded spring will have less rate increase as the suspension travels. For example, a 150 lb. in. spring can be preloaded to 400 lbs. at ride height, but still only increases at a rate of 150 lb. in. as suspension travels. The entire unit may also be exchanged with another unit with a different rate spring pre installed to allow spring rate changes without