# QA1 78-96 GM B-Body Pro Rear Coil-Over System - Double Adj. - 12in x 300lbs/in - Aluminum

QA1 offers bolt-in Rear Coil-Over Conversion Kits for 1978-1996 GM B-Bodies. These kits include specially designed USA made mounting brackets and single or double adjustable aluminum shocks, springs and all necessary hardware. 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 that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro Coil Systems, the American-made lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications. With our highly popular adjustable front coil-over kits and the addition of the rear coil-over conversion kit, you can now get a complete suspension makeover for both ends of the vehicle. Made in the U.S.A., Easy, Bolt-In Installation, No Cutting or Welding, Coil-Over, Ride Height Adjustable, 100% Dyno Tested and Serialized, Rebuildable and Revalveable by the QA1 Factory or QA1 Authorized Service Centers, Kit Will Lower the Vehicle, Conversion Kit Note: Later model vehicles tend to weigh more on average. Please take this into account when ordering springs. Call QA1 tech at 952.985.5675 for questions. Pro Coil Systems include:, 2 Shocks, 2 High Travel Springs, All Mounting Brackets and Hardware.

-   Ultimate balance of ride quality and performance handling with adjustable rebound and compression valving.
-   Achieve 1/2 higher than stock down to 2.25" lower than stock.
-   Limited Lifetime Warranty for peace of mind.
-   Proudly made in the USA.
-   Sold as a pair.

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

## Details

- **Price:** 1554.17 CAD
- **Vendor:** QA1
- **Type:** Coilovers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1554.17 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/qa1-78-96-gm-b-body-pro-rear-coil-over-system-double-adj-12in-x-300lbs-in-aluminum)
> Updated: 2026-06-27