Allstar Performance Spring Pre-Loader Wrench - Fits Nut 29107BK 30 to 120 psi

30 to 120 psi

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Allstar Performance Spring Pre-Loader Wrench - Fits Nut 29107BK 30 to 120 psiPre 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