QA1 rear coil‑over conversion for 1963–1972 Chevrolet C10 trucks features a single‑adjustable shock and firm 250 lb/in springs to stiffen rear response and allow ride height adjustment. The kit includes a panhard bar for proper axle placement and is intended for simple bolt‑in installation. QA1 provides adjustable shock valving for tuning, a strong warranty, and parts made in the USA.
QA1 63-72 Chevrolet C10 Rear Coil-Over Conversion System - Firm - Single Adjustable (250lbs/in)