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Vivid Racing Gear 
QA1 RCK52357 Rear Coil-Over Conversion Kit
Upgrade your 1978-1988 GM G-Body with the QA1 RCK52357 Rear Coil-Over Conversion Kit. This kit is designed to provide superior handling and ride quality, making it an ideal choice for both casual street driving and hardcore racing applications.
Key Features
- Custom Fit: Specifically engineered for 1978-1988 GM G-Bodies, ensuring a perfect fit and easy installation.
- Adjustable Shocks: Choose between single or double adjustable aluminum shocks. Single adjustable shocks offer 18 positions for simultaneous rebound and compression adjustment, while double adjustable shocks provide 18 positions each for compression and rebound, totaling 324 unique valving combinations.
- Ride Height Adjustability: The fully threaded shock body allows for precise ride height adjustments, giving you the flexibility to customize your vehicle's stance.
- Lightweight Design: Made from high-quality billet aluminum, these shocks are lightweight yet durable, enhancing your vehicle's performance without adding unnecessary weight.
- Multiple Spring Rates: The kit includes springs with a spring rate of 220, with various options available to suit your specific driving style and needs.
- Complete Package: The kit comes with all necessary mounting hardware, brackets, two shocks, and springs, making installation straightforward and hassle-free.
- Tested Performance: Each component is 100% dyno tested and serialized, ensuring reliability and performance. The shocks are also serviceable and rebuildable at QA1 authorized service centers.
Specifications
- Model: RCK52357
- Application: 1978-1988 GM G-Bodies
- Shock Type: Single or Double Adjustable
- Spring Rate: 220
- Material: Billet Aluminum
- Weight Consideration: Note that later model vehicles may weigh more, so consider this when selecting springs.
Fitment
This conversion kit is perfect for a variety of applications including drag racing, street performance, autocross, road racing, and street rod setups. Whether you’re looking to improve your daily driver or enhance your race car, the RCK52357 is a versatile choice.
Customer Insights
Users have praised the QA1 RCK52357 for its remarkable adjustability and performance. Many have noted how easy the installation process was, allowing them to quickly enjoy the benefits of improved handling and ride quality. The extensive adjustment options for the shocks have also been highlighted, enabling drivers to fine-tune their suspension setup to match their specific driving style.
Other Part Numbers:
QA1 #qapRCK52357
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
QA1 is a company that was founded in 1993. They specialize in manufacturing high-quality suspension parts, shock absorbers, composite driveshafts, bearings, steering components, and other related accessories. Their products are used in different industries such as the industrial, motorsports, and automotive sectors. Today, they are the leading manufacturer of OE parts in the market.
Suspension ExpertsThe company is best known for its motion control sub-assemblies and wide range of suspension systems. They are always searching for new ways to develop each component to enhance their products further.
State-of-the-Art FacilityThe company is housed in one of the most sophisticated facilities in the market to accommodate the increasing demands of its customers. With 100,000 square feet at their disposal, their facility contains high-tech equipment such as a CNC machine, laser cutting equipment, hydraulic presses, and filament windings. It allows them to manufacture the best product in the market.
QA1 is also one of the few companies that are ISO certified. It guarantees that their parts are manufactured consistently, following the standards put in place by the company and the regulators.
Purchase QA1 Products At Vivid RacingIf you are in the market for quality suspension parts for your vehicle, then QA1 is the brand for you. They have been manufacturing components for the last 28 years and have consistently given their customers parts that meet their demand. To know more about QA1, visit Vivid Racing and check out their list of parts that meet your demand.
| Sale price | None |
| Wholesale price | $1,057.00 |
| Shipping |
Weight: 24.00 Length: 22 Width: 11 Height: 9 |
| Product Added At | Monday 23 December, 2024 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | Turn_API |
| View In Admin |
| Carb Approved | - |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Yes |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $895.76 | $1,170.93 | ? | $1,056.95 | ? | 2025-07-11 10:45:11 |
