QA1 78-96 GM B-Body Pro Rear Coil-Over Shock Absorber - Double Adj. - Stock Mount - Aluminum - RCK52378

QA1 now offers bolt-in rear coil-over shocks for 1978-1996 GM B-bodies. These shocks are available in single or double adjustable valving options. Single adjustable shocks provide 18 positions of simultaneous rebound and compression adjustment while QA1's double adjustable shocks provide 18 positions of compression adjustment and 18 positions of rebound adjustment, for a total of 324 possible valving combinations. These shocks also utilize a fully threaded body allowing for the use of after market springs. With our highly popular adjustable front shocks and the addition of the rear coil-over shocks, you can now get a complete suspension makeover for both ends of the vehicle. Made in the USA, Easy, Bolt-In Installation, No Cutting or Welding, Threaded Body, 100% Dyno Tested and Serialized, Rebuildable and Revalveable by the QA1 Factory or QA1 Authorized Serivce Centers.

This Part Fits:

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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Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

Fidanza Performance is excited to offer QA1 Suspension

About - QA1 Suspension​

QA1 Precision Products, Inc., founded in 1993 and based in Lakeville, Minnesota, is a leading American manufacturer of high-performance suspension and driveline components. The company is known for producing quality coil-over kits, control arms, sway bars, adjustable shocks, and carbon fiber driveshafts, primarily for muscle cars, classic trucks, drag racing, and pro-touring builds.

QA1 stands out for its in-house engineering and manufacturing, with most products made in the USA. Their suspension systems are especially popular among enthusiasts looking to modernize older vehicles like Chevelles, Mustangs, and classic GM and Ford trucks. Known for their adjustability and durability, QA1 products are widely respected across both street and track applications.

With a strong reputation for quality and performance, QA1 supports the automotive community through events, sponsorships, and their annual open house. Their accessible performance upgrades have made them a trusted name in the aftermarket suspension world.

Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!