Allstar Performance Spring Pre-Loader Wrench - Fits Nut 13199903 An exclusive new modern combination

An exclusive new modern combination chamber design with double quench pad area helps the LSX generate huge low and mid lift airflow numbers

depending on application

Steel alloy drive gear compatible with either flat tappet or hydraulic roller camshafts

2007-2008 Chevrolet Silverado 1500

2 gloves and everything else you need for a week at the track

Allstar Performance Spring Pre-Loader Wrench - Fits Nut 13199903 An exclusive new modern combinationPre 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