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. 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.
Features
- Complements QA1 tubular control arms and sway bars for a complete suspension solution
- Single adjustable shocks with 18 settings of rebound/compression control
- Includes 10” coil springs with a 400 lb./in. spring rate
- Application-specific fit for 1967–1973 Ford Mustangs
- Easy bolt-in installation - no welding required
- Adjustable ride height: factory to –2”
Listed for 1 vehicle: the fitment table on this page shows each year, make and model it fits.
Part number: MS402-10400C (MS40210400C)
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | QA1 |
| Part number | QAPMS402-10400C |
| Category | Suspension & Lift |
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Worth adding
Useful in any truck — ships separately in its own box.
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