Allstar Performance Spring Pre-Loader - 3" - 10" Tall Spring 01201 1988-1996 GMC G3500

1988-1996 GMC G3500

billet machined filler neck with overflow

AN-10 size with a 40 micron stainless steel element and black anodize finishTo us

1/16-1/2 in Grip Range

Allstar Performance Spring Pre-Loader - 3" - 10" Tall Spring 01201 1988-1996 GMC G3500Pre 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