Product Summary

Rear Position, 300 lbs. Spring Rate, Height Adjustable

  • QA1's Heavy Duty Pro Rear Systems are designed to add coilovers to vehicles with a rear axle weight of 1700-2600 lbs, including all necessary hardware for easy installation.
  • The system includes double-adjustable Proma Star shocks for precision handling, but requires welding and is designed for 3.25” axle tubes, along with specific upper shock mount dimensions.
  • The axle-mounted brackets provide ¾” increments of adjustment, allowing for a total of 9” of ride height adjustability for personalized stance control.
  • It includes axle mount bracketry, upper shock mounts, and fully adjustable QA1 coilover shocks and springs for optimal performance.
  • The kit features double shear bracketry and increased spring rates, ensuring strength and support for both street and race applications.
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Key Specs

PositionRear
Spring Rate300 lbs.
Shock AdjustabilityDouble Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
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QA1 DD501-3001 Details

Product Overview

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.

FITMENT NOTES

Welding required. Designed for 3.25” 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.

QA1 DD501-3001 Specifications

KEY SPECS
MFG. Part #DD501-3001
BrandQA1
PositionRear
Spring Rate300 lbs.
Shock AdjustabilityDouble Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
Upper Shock MountEyelet
Lower Shock MountEyelet
Height AdjustableYes
FinishPolished
GENERAL
Compressed Length11.63"
Extended Length16.88"
Number of Valving Selections324
Coilover Springs IncludedYes
Sold in QuantityKit
Hardware IncludedYes
Crossmember IncludedNo
Welding RequiredYes
Gas ChargedNo
Spring FinishPowder Coated
NotesDesigned for 3.25 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.
GTIN Code806990169846
Adjustable ValvingYes
Adjustable Mounting Bracket IncludedYes
Lower MountBearing
Upper MountBearing
Shocks IncludedYes

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