The QA1 RCK52407 rear coil-over conversion kit gives 1979-2004 Ford Mustang owners a bolt-in suspension upgrade for street or track use. It combines adjustable aluminum shocks, 175 lb/in springs, mounting brackets, and hardware in a vehicle-specific design.
| Years | Make | Model | Application Notes |
|---|---|---|---|
| 1979-2004 | Ford | Mustang | Vehicle-specific rear coil-over conversion kit |
| 1999-2004 | Ford | Mustang Cobra | Does not fit models equipped with independent rear suspension |
| Detail | Value |
|---|---|
| Part number | RCK52407 |
| Part type | Rear coil-over conversion kit |
| Position | Rear |
| Adjustment | Double adjustable for rebound and compression |
| Spring rate | 175 lb/in |
| Shock body | Fully threaded aluminum |
| Shock construction | Twin-tube |
| Mount style | Eyelet mounts |
| Installation | Bolt-in with no drilling required |
| Finish | Precision machined |
QA1 manufactures the RCK52407 coil-over conversion kit in Lakeville, Minnesota. The company designs this rear suspension system for performance-focused Mustang street and track applications.
It is a vehicle-specific rear coil-over conversion kit for 1979-2004 Ford Mustang applications.
Which Mustang years does this kit fit?This kit fits Ford Mustang models from 1979-2004.
Does this kit fit Mustang Cobra models with independent rear suspension?No. It does not fit 1999-2004 Ford Mustang Cobra models equipped with independent rear suspension.
What does double adjustable mean?The shocks provide independent adjustment of rebound and compression for suspension tuning.
Is the ride height adjustable?Yes. The fully threaded aluminum shock bodies provide ride height adjustment.
What is the spring rate?The kit uses a 175 lb/in spring rate.
How does this kit install?The conversion kit uses a bolt-in installation and does not require drilling.
What type of shocks are included?The kit includes adjustable aluminum twin-tube shocks with eyelet mounts.
Is this kit intended for street or track use?It is intended for both street and track applications.
California Proposition 65 warning: Cancer and Reproductive Harm. Notice: www.P65Warnings.ca.gov.
QA1 suspension parts are stocked at Black Ops Auto Works for American muscle cars and classic trucks. Shop coilover kits, shock absorbers, springs, handling kits, four link systems, sway bars, strut kits, rod ends, and suspension hardware for the Mustang, Camaro, Corvette, Challenger, Charger, and GM B-Body, F-Body, and G-Body platforms. Every product is filterable by year, make, model, trim, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 536 QA1 SKUs across coilovers, shocks, springs, and handling kit categories. What This Brand Covers QA1 is a suspension manufacturer known for adjustable coilover systems, shock absorbers, and complete handling kits built for muscle cars, classic trucks, drag cars, and pro touring builds. The lineup covers everything from single component shock replacement to full vehicle handling packages. Brand Focus QA1 concentrates on American muscle car and classic truck platforms, with deep coverage of GM, Ford, and ...
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