DD501-12250 HD Pro Rear Weld-In Coilover Kit, Double Adjustable Shock, 250lb/in. Spring for 3.00in. Axle Tube

QA1

SKU
DD501-12250
$1,017.95
Estimated Shipping Date: Jun 10, 2026
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QA1's Heavy Duty Pro Rear Systems are the perfect solution to add coilovers to your car or truck. Designed for any vehicle with a 1700-2600 lbs. rear axle weight, this kit includes all the necessary hardware and bracketry for a seamless installation. With double shear bracketry and increased spring rates, it ensures the strength and support you need for street and race applications. This simple weld-on kit features axle mount bracketry, upper shock mounts and tubing, and fully adjustable QA1 coilover shocks and springs.

Ride Height Adjustability

Our axle-mounted brackets offer ¾” increments of adjustment, and the coilover shock allows for fine-tuning. Combined, you will have a total of 9” of ride height adjustability, giving you full control for your desired stance.

Double-Adjustable Coil-Overs

For performance enthusiasts who demand precision handling and control, our double-adjustable Proma Star shocks are the perfect choice. Perfect for both street and track use, double adjustable shocks are famous for their independent rebound and compression tunability, giving you exceptional handling and control for finer control over your suspension.

Easy, Weld-In Installation

Each kit comes complete with the essential brackets, tabs, and hardware, making it a simple weld-on solution to get the job done efficiently without excess fabrication or trips to the parts store.

Best In-Class Lifetime Warranty

Register at QA1.net/warranty for lifetime coverage of your QA1 shocks.

Fitment Notes

Welding required

Designed for 3.00” axle tubes

Included tubular upper shock mount dimensions are 1-5/8” diameter x .095 wall, 40” long

Requires use of QA1 spanner wrench T114W or T115W

Specifications

  • Included ShocksDouble Adjustable
  • Spring Rate250lb/in.
  • Axle Diameter3.00in.