SKU: RCK52352 | UPC: 806990123466
QA1 78-88 GM G-Body Pro Rear Coil-Over System - Single Adj. - 12in x 200lbs/in - Aluminum
QA1 RCK52352 delivers a complete bolt-in rear coil-over conversion for 1978-1988 GM G-Body vehicles including Chevrolet Malibu, Monte Carlo, Buick Regal and Oldsmobile Cutlass. This kit replaces stock suspension with single adjustable aluminum shocks, 12-inch 200 lb/in springs, custom USA-made brackets and hardware for precise handling in street driving, drag racing or autocross. Ride height drops the rear for better traction and cornering while maintaining daily drivability.
Key Features
- Single Adjustable Shocks: 18 positions of simultaneous rebound and compression damping adjustment to fine-tune response for street or track conditions
- Fully Threaded Aluminum Body: 12-inch shock length enables easy ride height changes without disassembly, lowering vehicle up to 2-3 inches
- Custom Bolt-In Brackets: USA-made steel mounts ensure direct fit with all hardware included for 30-minute install per side
- 200 lb/in Springs: Eibach-rated linear rate handles 3500-4500 lb vehicles from casual cruising to hard launches, multiple rates available
- Lightweight Design: Billet aluminum shocks reduce unsprung weight by 10 lbs per corner versus OEM for sharper response and dyno-tested performance
Product Notes
- Later model G-Bodies average 200-400 lbs more curb weight than early models. select spring rate accordingly for balance
- Kit lowers rear ride height 1.5-3 inches depending on preload. measure before install
- 100% dyno-tested, serialized shocks are rebuildable at QA1 service centers worldwide
Installation Notes
- Professional installation recommended.
- Bolt-on design uses factory locations. no welding or fabrication needed
- Compatible with stock or aftermarket rear ends including 8.5/8.8-inch 10-bolt or Ford 9-inch
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1988 | Buick | Regal | |
| 1978-1983 | Chevrolet | El Camino | |
| 1978-1983 | Chevrolet | Malibu | |
| 1978-1988 | Chevrolet | Monte Carlo | |
| 1978-1982 | GMC | Caballero | |
| 1978-1988 | Oldsmobile | Cutlass | Salon, Supreme |
| 1978-1981 | Pontiac | Grand Prix | |
| 1978-1981 | Pontiac | LeMans |
Why Choose QA1?
- Proven in NHRA drag racing, SCCA autocross and NASA road racing with thousands of installations
- Every shock dyno-tested and serialized for consistent valving from factory
- Engineered in Lakeville MN USA with rebuild service at 50+ authorized centers
Frequently Asked Questions
-
Q: Does this fit Grand National or GNX Buick Regal?
A: Yes, direct bolt-in for 1984-1987 Buick Regal Grand National and 1987 GNX with no modifications -
Q: What material are the shocks?
A: 6061-T6 billet aluminum bodies with Teflon-infused seals for corrosion resistance and smooth operation -
Q: What is the warranty?
A: 1-year unlimited mileage on manufacturing defects. lifetime on valving if serviced by QA1 centers
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Single box 22in x 12in x 8in
- Weight: 22 lbs
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