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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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QA1
QA1 1978-1996 GM B-Body Pro Rear Coil-Over System - Double Adjustable - 12in x 250lbs/in Aluminum RCK52380
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 1978-1996 GM B-Body models including Chevrolet Caprice and Impala, Buick Roadmaster and LeSabre, Oldsmobile Delta 88, and Pontiac Bonneville.
Transform your vehicle's handling and stance with the QA1 Pro Rear Coil-Over Conversion System. This bolt-in kit replaces factory shocks and springs with a fully adjustable performance setup designed to improve weight balance and suspension response. The double-adjustable aluminum shocks feature 18 positions of independent compression and rebound adjustment, providing 324 unique valving combinations to bridge the gap between street comfort and track performance.
The system includes American-made, lightweight high-travel springs with a 250 lbs/in rate. These springs utilize fewer coils and a smaller wire diameter to increase travel and reduce unsprung weight. With a fully threaded shock body, you can easily adjust your ride height from 0.5 inches higher than stock to 2.25 inches lower than stock to achieve the perfect center of gravity.
- Manufacturer Part Number: RCK52380
- Double adjustable shocks with 324 valving combinations
- 12-inch x 250 lbs/in high-travel springs
- Lightweight, hard-anodized aluminum shock bodies
- Ride height adjustable from +0.5" to -2.25"
- 100% dyno tested and serialized
- Rebuildable and revalveable by QA1 service centers
- Complete bolt-in installation with no cutting or welding required
- Includes 2 shocks, 2 springs, mounting brackets, and all necessary hardware
- Limited Lifetime Warranty
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1983 | Buick | Estate Wagon | Base |
| 1978-1981 | Buick | LeSabre | Base |
| 1985 | Buick | LeSabre | Collector's Edition |
| 1978,1982-1985 | Buick | LeSabre | Custom |
| 1985 | Buick | LeSabre | Estate Wagon |
| 1979-1985 | Buick | LeSabre | Limited |
| 1982 | Buick | LeSabre | Limited Edition F/E |
| 1978-1981 | Buick | LeSabre | Sport |
| 1992-1995 | Buick | Roadmaster | Base |
| 1996 | Buick | Roadmaster | Collector's Edition |
| 1991-1995 | Buick | Roadmaster | Estate Wagon |
| 1996 | Buick | Roadmaster | Estate Wagon Collector's Edition |
| 1992-1995 | Buick | Roadmaster | Limited |
| 1996 | Buick | Roadmaster | Limited Collector's Edition |
| 1986-1992 | Chevrolet | Caprice | Base |
| 1978-1996 | Chevrolet | Caprice | Classic |
| 1986-1990 | Chevrolet | Caprice | Classic Brougham |
| 1978,1981-1982 | Chevrolet | Caprice | Classic Estate |
| 1978-1981 | Chevrolet | Caprice | Classic Landau |
| 1993-1994 | Chevrolet | Caprice | Classic LS |
| 1987-1990 | Chevrolet | Caprice | Classic LS Brougham |
| 1991-1993 | Chevrolet | Caprice | Classic LTZ |
| 1979-1980 | Chevrolet | Caprice | Classic Sport |
| 1978-1985 | Chevrolet | Impala | Base |
| 1981-1982 | Chevrolet | Impala | Estate |
| 1978-1979 | Chevrolet | Impala | Landau |
| 1979-1980 | Chevrolet | Impala | Sport |
| 1994-1996 | Chevrolet | Impala | SS |
| 1978-1992 | Oldsmobile | Custom Cruiser | Base |
| 1978-1983 | Oldsmobile | Delta 88 | Base |
| 1980-1981 | Oldsmobile | Delta 88 | Holiday |
| 1978-1985 | Oldsmobile | Delta 88 | Royale |
| 1980-1985 | Oldsmobile | Delta 88 | Royale Brougham |
| 1984-1985 | Oldsmobile | Delta 88 | Royale Brougham LS |
| 1978-1981 | Pontiac | Bonneville | Base |
| 1978-1981 | Pontiac | Bonneville | Brougham |
| 1978-1981 | Pontiac | Bonneville | Safari |
| 1978-1981 | Pontiac | Catalina | Base |
| 1978-1981 | Pontiac | Catalina | Safari |
| 1983-1986 | Pontiac | Parisienne | Base |
| 1983-1986 | Pontiac | Parisienne | Brougham |
| 1987-1989 | Pontiac | Safari | Base |
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1340 Cobb Dr, Unit 1, Eustis, FL 32736
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QA1 1978-1996 GM B-Body Pro Rear Coil-Over System - Double Adjustable - 12in x 250lbs/in Aluminum RCK52380
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
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Fits select 1978-1996 GM B-Body models including Chevrolet Caprice and Impala, Buick Roadmaster and LeSabre, Oldsmobile Delta 88, and Pontiac Bonneville.
Transform your vehicle's handling and stance with the QA1 Pro Rear Coil-Over Conversion System. This bolt-in kit replaces factory shocks and springs with a fully adjustable performance setup designed to improve weight balance and suspension response. The double-adjustable aluminum shocks feature 18 positions of independent compression and rebound adjustment, providing 324 unique valving combinations to bridge the gap between street comfort and track performance.
The system includes American-made, lightweight high-travel springs with a 250 lbs/in rate. These springs utilize fewer coils and a smaller wire diameter to increase travel and reduce unsprung weight. With a fully threaded shock body, you can easily adjust your ride height from 0.5 inches higher than stock to 2.25 inches lower than stock to achieve the perfect center of gravity.
- Manufacturer Part Number: RCK52380
- Double adjustable shocks with 324 valving combinations
- 12-inch x 250 lbs/in high-travel springs
- Lightweight, hard-anodized aluminum shock bodies
- Ride height adjustable from +0.5" to -2.25"
- 100% dyno tested and serialized
- Rebuildable and revalveable by QA1 service centers
- Complete bolt-in installation with no cutting or welding required
- Includes 2 shocks, 2 springs, mounting brackets, and all necessary hardware
- Limited Lifetime Warranty
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1983 | Buick | Estate Wagon | Base |
| 1978-1981 | Buick | LeSabre | Base |
| 1985 | Buick | LeSabre | Collector's Edition |
| 1978,1982-1985 | Buick | LeSabre | Custom |
| 1985 | Buick | LeSabre | Estate Wagon |
| 1979-1985 | Buick | LeSabre | Limited |
| 1982 | Buick | LeSabre | Limited Edition F/E |
| 1978-1981 | Buick | LeSabre | Sport |
| 1992-1995 | Buick | Roadmaster | Base |
| 1996 | Buick | Roadmaster | Collector's Edition |
| 1991-1995 | Buick | Roadmaster | Estate Wagon |
| 1996 | Buick | Roadmaster | Estate Wagon Collector's Edition |
| 1992-1995 | Buick | Roadmaster | Limited |
| 1996 | Buick | Roadmaster | Limited Collector's Edition |
| 1986-1992 | Chevrolet | Caprice | Base |
| 1978-1996 | Chevrolet | Caprice | Classic |
| 1986-1990 | Chevrolet | Caprice | Classic Brougham |
| 1978,1981-1982 | Chevrolet | Caprice | Classic Estate |
| 1978-1981 | Chevrolet | Caprice | Classic Landau |
| 1993-1994 | Chevrolet | Caprice | Classic LS |
| 1987-1990 | Chevrolet | Caprice | Classic LS Brougham |
| 1991-1993 | Chevrolet | Caprice | Classic LTZ |
| 1979-1980 | Chevrolet | Caprice | Classic Sport |
| 1978-1985 | Chevrolet | Impala | Base |
| 1981-1982 | Chevrolet | Impala | Estate |
| 1978-1979 | Chevrolet | Impala | Landau |
| 1979-1980 | Chevrolet | Impala | Sport |
| 1994-1996 | Chevrolet | Impala | SS |
| 1978-1992 | Oldsmobile | Custom Cruiser | Base |
| 1978-1983 | Oldsmobile | Delta 88 | Base |
| 1980-1981 | Oldsmobile | Delta 88 | Holiday |
| 1978-1985 | Oldsmobile | Delta 88 | Royale |
| 1980-1985 | Oldsmobile | Delta 88 | Royale Brougham |
| 1984-1985 | Oldsmobile | Delta 88 | Royale Brougham LS |
| 1978-1981 | Pontiac | Bonneville | Base |
| 1978-1981 | Pontiac | Bonneville | Brougham |
| 1978-1981 | Pontiac | Bonneville | Safari |
| 1978-1981 | Pontiac | Catalina | Base |
| 1978-1981 | Pontiac | Catalina | Safari |
| 1983-1986 | Pontiac | Parisienne | Base |
| 1983-1986 | Pontiac | Parisienne | Brougham |
| 1987-1989 | Pontiac | Safari | Base |
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