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QA1 Kit, Rear Pro-Coil S-Adj GM G-Body, 12-170
$843.95

QA1 RCK52351 Rear Coil-Over Conversion Kit

Upgrade your 1978-1988 GM G-Body with the QA1 RCK52351 Rear Coil-Over Conversion Kit. This comprehensive kit comes with everything you need for a successful installation, including specially designed USA-made mounting brackets, high-quality aluminum shocks, springs, and all necessary hardware.

Key Features

  • Adjustable Shocks: Choose between single and double adjustable aluminum shocks. The single adjustable option offers 18 positions for simultaneous rebound and compression adjustment, while the double adjustable version provides 18 positions each for compression and rebound, totaling 324 possible valving combinations.
  • Ride Height Adjustability: The fully threaded body of the shocks allows you to easily adjust the ride height to suit your preferences and driving style.
  • Multiple Spring Rates: With various spring rate options available, you can customize your suspension setup. These have been rigorously tested for a range of applications, from casual street driving to hardcore racing.
  • Lightweight Design: Made from lightweight billet aluminum, these coil-over shocks are designed for easy, bolt-in installation without compromising performance.
  • Dyno Tested: Each shock is 100% dyno tested and serialized, ensuring top-notch performance. They are also serviceable and rebuildable at QA1 authorized service centers.

Benefits of the RCK52351 Kit

This kit not only enhances your vehicle's handling and stability but also lowers the ride height for a more aggressive stance. It's perfect for drag racing, street performance, autocross, road racing, and street rod applications. With the addition of the Rear Coil-Over Conversion Kit, you can achieve a complete suspension makeover for both ends of your vehicle.

Specifications

  • Application: 1978-1988 GM G-Bodies
  • Shock Type: Single or Double Adjustable Aluminum Shocks
  • Spring Rate: 170 lbs
  • Installation: Bolt-in with all necessary hardware included

Fitment Notes

Keep in mind that later model vehicles tend to weigh more on average. This should be considered when ordering springs to ensure optimal performance and fitment.

Customer Feedback

Users consistently praise the QA1 RCK52351 for its remarkable performance and ease of installation. Many have noted significant improvements in handling and ride quality, making it a top choice for those looking to upgrade their G-Body suspension. The adjustability options are particularly appreciated, allowing for fine-tuning based on individual driving styles and preferences.

Other Part Numbers:
QA1 #qapRCK52351

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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Sale price None
Wholesale price $843.98
Shipping Weight: 22.60
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
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Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
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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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