QA1 · New
QA1 67-73 Ford Mustang Pro Front Coil-Over System - Single Adj. - 10in x 400lbs/in - Aluminum
MPN MS402-10400C · Store SKU qapMS402-10400C
Supplier stock checked 11/7/2026, 6:42:03 AM UTC. Adding a part does not reserve it.
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Product details
Modernize your 1967–1973 Mustang’s suspension with QA1’s Pro Coil System. This single adjustable coilover kit combines ride quality, performance handling, and stance adjustability in an easy bolt-in package. Featuring a 10” coil spring with a 400 lb./in. rate, it’s the perfect solution for street performance and restomod builds that demand sharper handling with a comfortable ride. MODERN HANDLING & ADJUSTABILITY QA1 single adjustable coilovers allow you to fine-tune rebound and compression together with 18 settings of adjustment. With a simple turn of the knob, you can soften the ride for cruising or firm it up for aggressive driving. RIDE HEIGHT FLEXIBILITY This system lets you adjust ride height from factory stock height down to 2” lower, giving you control over stance, wheel/tire fitment, and handling balance without sacrificing suspension geometry. EASY BOLT-IN INSTALLATION No welding, cutting, or major modifications. QA1 designed this kit as a direct bolt-in upgrade for classic Mustangs, making it an easy DIY-friendly installation. Front Pro Coil single adjustable stock mount shock kit. Includes 10" spring with rating of 400 and a flat end. Kit, Pro-Coil Aluminum S-Adj, 10-400 Tapered Flat Lrg
Manufacturer fitment & guides
Check MS402-10400C against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
