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The QA1 Pro Coil front coil‑over system for 1999–2006 Chevrolet Silverado/Sierra trucks is a single‑adjustable, stock‑mount kit that brings tunable damping and threaded ride‑height control to light‑truck front ends. This version includes a 10" spring rated 650 lb/in and a fully threaded shock body to set stance and weight balance. The lightweight, high‑travel spring design improves travel and response, and the bolt‑in installation fits the specified Silverado/Sierra models while being serviceable by QA1 centers.
QA1 99-06 Chevrolet Silverado Pro Front Coil-Over System - Single Adj. - 10in x 650lbs/in - Aluminum
