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Vivid Racing Gear 
QA1 RCK52372 Rear Coil-Over Conversion Kit
Upgrade your 1973-1977 GM A-Body with the QA1 RCK52372 Rear Coil-Over Conversion Kit, designed for those who demand exceptional performance and handling. This kit is all about providing a smooth, adjustable ride while enhancing your vehicle's overall dynamics.
Key Features
- Complete Kit: Includes everything you need: two high-quality shocks, two lightweight high travel springs, all necessary mounting brackets, and hardware.
- Adjustable Shocks: Choose between single or double adjustable aluminum shocks. The single adjustable shocks offer 18 positions for simultaneous rebound and compression adjustment, while the double adjustable shocks provide 18 positions for both compression and rebound, resulting in a staggering 324 possible valving combinations.
- Ride Height Adjustment: The fully threaded shock body allows you to easily adjust your ride height, giving you the flexibility to achieve the perfect stance and optimize weight distribution for superior handling.
- Lightweight Springs: The American-made springs feature fewer coils and a smaller wire diameter, leading to increased travel due to the larger spacing between coils. This design reduces unsprung weight and enhances suspension response.
- Versatile Spring Rates: Multiple spring rate options are available, making this kit suitable for everything from casual street driving to hardcore racing applications.
Benefits of the RCK52372 Kit
This rear coil-over conversion kit is a game changer for your suspension setup. With the addition of this kit, you can achieve a complete suspension overhaul, complementing your adjustable front coil-over kits for a balanced ride. The easy, bolt-in installation requires no cutting or welding, making it a hassle-free upgrade.
Specifications
- Application: Fits 1973-1977 GM A-Bodies
- Shock Type: Available in single or double adjustable
- Spring Rate: 170 lbs/in
- Made in the USA: Proudly manufactured with high-quality materials
- Testing: 100% dyno tested and serialized for quality assurance
- Rebuildable: Can be rebuilt and revalved by QA1 or authorized service centers
Fitment Notes
When ordering springs, keep in mind that later model vehicles tend to weigh more on average. For any questions or specific fitment inquiries, reach out to QA1 tech at 952.985.5675.
Customer Reviews
"After installing the RCK52372, my car handles like a dream! The adjustability of the shocks made a noticeable difference, and I love the ability to fine-tune the ride height."
"This kit transformed my A-Body's performance. The installation was straightforward, and the ride quality is fantastic. Highly recommend for anyone looking to upgrade their suspension!"
Other Part Numbers:
QA1 #qapRCK52372
⚠ 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: 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 | $895.76 | $1,170.93 | ? | $1,056.95 | ? | 2025-07-11 10:45:11 |
