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The QA1 Pro Coil front coil‑over system specified for 1971–1996 Impalas and similar full‑size GM and Ford vehicles is a single‑adjustable kit that combines damping adjustability with ride‑height tuning. This kit includes a 10" spring rated 600 lb/in and a threaded shock body for stance adjustments. High‑travel spring design reduces unsprung weight and increases travel; the assembly is bolt‑in, serviceable, and manufactured in the USA.
QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 600lbs/in - Flat Large - Aluminum
