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Vivid Racing Gear 
QA1 RCK52377 Rear Coil-Over Conversion Kit for 1973-1977 GM A-Bodies
Key Features
- Compatible with 1973-1977 GM A-Bodies
- Includes specially designed USA-made mounting brackets
- Options for single or double adjustable aluminum shocks
- High travel springs designed for optimal performance
- Comprehensive hardware included for easy installation
Adjustability for Performance
The RCK52377 kit offers single adjustable shocks with 18 positions for both rebound and compression adjustments. For those seeking even finer control, the double adjustable shocks provide 18 positions each for compression and rebound, allowing for a staggering 324 possible valving combinations. This level of adjustability ensures you can fine-tune your ride to match your driving style and preferences.
Ride Height and Handling
With a fully threaded body, these shocks enable you to easily adjust your ride height, giving you the ability to achieve the perfect stance. This feature is particularly beneficial for optimizing weight balance, leading to superior handling on the road or track. The lightweight high travel springs, crafted in the USA, feature fewer coils and a smaller wire diameter, which enhances suspension performance by increasing travel and reducing unsprung weight.
Versatile Spring Rates
The kit offers multiple spring rate options, ensuring compatibility with a variety of applications—from casual street driving to serious racing. The included springs are rigorously tested to ensure they meet the demands of diverse driving conditions.
Easy Installation
Designed for a hassle-free installation, the RCK52377 kit is a bolt-in solution that requires no cutting or welding. This means you can upgrade your suspension with ease, getting you back on the road quickly.
Product Specifications
- Kit Includes: 2 Shocks, 2 High Travel Springs, All Mounting Brackets and Hardware
- Spring Rate: 200
- 100% Dyno Tested and Serialized
- Rebuildable and Revalveable by QA1 Factory or Authorized Service Centers
- Made in the U.S.A.
Fitment Note
Keep in mind that later model vehicles tend to weigh more on average. It’s advisable to consider this when selecting your spring rates. For any questions or specific fitment inquiries, reach out to QA1 tech support at 952.985.5675.
Customer Insights
Users have praised the RCK52377 for its impressive adjustability and ease of installation. Many noted a significant improvement in handling and ride quality, making it a worthwhile investment for both casual drivers and enthusiasts alike. The ability to customize suspension settings has been highlighted as a standout feature, allowing for a tailored driving experience.
Other Part Numbers:
QA1 #qapRCK52377
⚠ 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 | $843.98 |
| Shipping |
Weight: 25.00 Length: 18 Width: 9 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 | $715.24 | $934.96 | ? | $843.95 | ? | 2025-07-11 10:45:11 |
