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QA1 Kit, Rear Pro-Coil D-Adj Chevy B-Body 65-70 12-170
$1056.95

QA1 RCK52389 Rear Coil-Over Conversion Kit for 1965-1970 Chevy B-Bodies

Key Features

  • Complete Kit: Includes two high-quality aluminum shocks, two high travel springs, and all necessary mounting brackets and hardware.
  • Adjustable Shocks: Choose between single or double adjustable shocks. Single adjustable shocks offer 18 positions for simultaneous rebound and compression adjustment, while double adjustable shocks provide 18 positions for each, totaling 324 possible valving combinations.
  • Ride Height Adjustment: Fully threaded shock bodies allow for precise ride height adjustments, ensuring the perfect stance and improved weight balance for superior handling.
  • High Travel Springs: American-made springs with fewer coils and a smaller wire diameter, designed to increase travel and reduce unsprung weight for quicker reactions and optimized performance.
  • Multiple Spring Rates: Available in various spring rates, tested for applications ranging from casual street driving to hardcore racing.

Benefits

With the RCK52389 kit, you can achieve a comprehensive suspension upgrade for your Chevy B-Body. The combination of adjustable front coil-over kits and this rear conversion kit transforms your vehicle's handling dynamics, making it suitable for both daily driving and competitive racing.

Specifications

  • Fitment: Designed specifically for 1965-1970 Chevy B-Bodies.
  • Spring Rate: Comes with a spring rate of 170.
  • Installation: Easy bolt-in installation with no cutting or welding required.
  • Made in the USA: All components are manufactured in the United States, ensuring top-notch quality.
  • Rebuildable and Revalveable: Shocks can be serviced by the QA1 factory or authorized service centers.
  • Weight Consideration: Note that later model vehicles tend to be heavier, so consider this when ordering springs. For assistance, call QA1 tech at 952.985.5675.

Product Reviews

Many users have praised the QA1 RCK52389 for its straightforward installation process and noticeable improvement in handling. One customer noted, "After installing this kit, my Chevy feels more stable around corners and the ride quality is fantastic." Another reviewer highlighted the versatility of the adjustable shocks, stating, "Being able to fine-tune the settings made a huge difference in my driving experience, whether on the street or the track." Overall, the RCK52389 has received positive feedback for its performance enhancements and build quality.

Other Part Numbers:
QA1 #qapRCK52389

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 $1,057.00
Shipping Weight: 19.00
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
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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 $895.76 $1,170.93 ? $1,056.95 ? 2025-07-11 10:45:14

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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