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QA1 Kit, Rear Pro-Coil S-Adj GM A-Body 73-77 12-150
$843.95

QA1 RCK52375 Rear Coil-Over Conversion Kit

Upgrade your 1973-1977 GM A-Body with the QA1 RCK52375 Rear Coil-Over Conversion Kit. This kit is designed for enthusiasts who demand performance and quality, featuring everything you need for a seamless installation.

Key Features

  • Bolt-In Installation: Enjoy a straightforward, no-hassle setup with no cutting or welding required.
  • Adjustable Ride Height: Tailor your vehicle's stance to your liking, enhancing both aesthetics and handling.
  • High-Performance Shocks: Choose between single or double adjustable aluminum shocks, offering up to 324 possible valving combinations for precise tuning.
  • Lightweight Springs: American-made high travel springs reduce unsprung weight and improve responsiveness, thanks to their unique design with fewer coils and smaller wire diameter.
  • Comprehensive Kit: Includes all necessary mounting brackets, hardware, two shocks, and two high travel springs, ensuring you have everything you need for installation.
  • Dyno Tested: Each component is 100% dyno tested and serialized, ensuring top-notch performance and reliability.
  • Rebuildable and Revalveable: Both the shocks and springs can be serviced by QA1 or authorized service centers, allowing for longevity and adaptability.

Specifications

  • Fitment: Designed specifically for 1973-1977 GM A-Bodies.
  • Spring Rate: Comes with a spring rate of 150, suitable for various applications from street driving to racing.
  • Weight Considerations: Be aware that later model vehicles typically weigh more; consult with QA1 tech for optimal spring selection.

Benefits of the RCK52375

This rear coil-over conversion kit not only enhances your vehicle's handling but also allows for a customized ride experience. Whether you're cruising down the street or hitting the track, the QA1 RCK52375 provides the versatility and performance you need.

Customer Reviews

"The installation was a breeze, and I immediately noticed the difference in handling. The adjustable shocks let me fine-tune my setup perfectly!"

"These coil-overs transformed my ride. The reduction in weight and improved responsiveness are game-changers for my racing setup!"

Contact QA1 for Assistance

If you have any questions or need guidance on the best spring options for your vehicle, don't hesitate to reach out to QA1's technical support at 952.985.5675.

Conclusion

Upgrade your suspension with the QA1 RCK52375 Rear Coil-Over Conversion Kit and experience the perfect blend of performance, adjustability, and quality craftsmanship.

Other Part Numbers:
QA1 #qapRCK52375

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is QA1?

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 Experts

The 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 Facility

The 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 Racing

If 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.



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Things
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
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Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $715.24 $934.96 ? $843.95 ? 2025-07-11 10:45:11

Manufacturer Direct Shipping
This item is available for direct shipping from the manufacturer. Please verify stock availability with the manufacturer. Once confirmed, you can place an order through [Meyer Distributing], who will arrange for dropshipping from the manufacturer directly to our customer.

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