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Vivid Racing Gear 
QA1 RCK52355 Rear Coil-Over Conversion Kit
Upgrade your 1978-1988 GM G-Body with the QA1 RCK52355 Rear Coil-Over Conversion Kit. This kit is meticulously designed to enhance your vehicle's suspension performance, offering a seamless bolt-in installation that makes it perfect for both casual drivers and hardcore racers.
Key Features
- Custom-Made Mounting Brackets: Each kit includes USA-made mounting brackets for a precise fit.
- Adjustable Shock Options: Choose between single adjustable shocks with 18 positions for simultaneous rebound and compression adjustment, or double adjustable shocks offering 18 positions each for both compression and rebound. That’s a total of 324 possible valving combinations!
- Ride Height Adjustability: The fully threaded body of the shocks allows you to easily adjust the ride height to your preference.
- Multiple Spring Rates: The kit includes springs with a spring rate of 170, tested for various applications—from everyday street driving to competitive racing.
- Lightweight Design: Constructed from high-quality billet aluminum, these coil-over shocks are lightweight yet durable.
- Serviceable and Rebuildable: All components are 100% dyno tested, serialized, and can be serviced or rebuilt by QA1 authorized centers.
Specifications
- Vehicle Fitment: Compatible with 1978-1988 GM G-Bodies
- Shock Type: Available in single or double adjustable options
- Spring Rate: 170 lbs/in
- Installation: Bolt-in installation with all necessary hardware included
Performance Benefits
This conversion kit is designed for versatility, making it suitable for drag racing, street performance, autocross, and road racing. Whether you're hitting the track or cruising the streets, the QA1 RCK52355 ensures that your vehicle handles beautifully and maintains stability during high-speed maneuvers.
Customer Feedback
Users have praised the QA1 RCK52355 for its easy installation and noticeable improvements in handling and ride quality. Many have noted that the adjustable features allow them to tailor the suspension settings to their specific driving style, providing a custom feel that enhances both comfort and performance.
Important Note
When ordering springs, keep in mind that later model vehicles may weigh more on average, which can affect your selection. Be sure to consider your vehicle's specific needs to achieve optimal performance.
Other Part Numbers:
QA1 #qapRCK52355
⚠ 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: 21.10 Length: 21 Width: 10 Height: 8 |
| 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 |
