The QA1 front coil-over conversion system for 1965–1979 Ford F-100 trucks is an engineered-from-scratch front suspension that replaces junkyard parts with a complete, bolt-in solution. The system is 3.75" narrower than a Crown Vic, saves roughly 150 lbs, and provides 3–5" drop with standard spindles or 5–7" with drop spindles. Kits include adjustable shocks, high-travel springs, upper and lower crossmembers, control arms, rack-and-pinion steering and all hardware.
QA1 65-79 Ford F100 Front Coil-Over Conversion Kit (3-5in Drop) - Single Adjustable (600lbs/in)