Allstar Performance Spring Pre-Loader - 3" - 10" Tall Spring R09J003M NOTE: Installation Kit is available

NOTE: Installation Kit is available #RJJS90906-2 (sold separately)

Number 10 ID

Nissan 2013-2019

adjustable from 3-20 PSI

1987-1987 Oldsmobile Calais

Allstar Performance Spring Pre-Loader - 3" - 10" Tall Spring R09J003M NOTE: Installation Kit is availablePre 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