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Vivid Racing Gear 
QA1 Heavy Duty Pro Rear System DS501-2001
Upgrade your vehicle's suspension with the QA1 Heavy Duty Pro Rear System DS501-2001, designed specifically for cars and trucks with a rear axle weight of 1700-2600 lbs. This comprehensive kit includes everything you need for a straightforward installation, ensuring you can hit the road with confidence.
Key Features
- Complete Kit: Comes with all necessary hardware and bracketry for easy installation.
- Double Shear Bracketry: Provides enhanced strength and support for both street and race applications.
- Adjustable Ride Height: Features axle-mounted brackets for 9 increments of ride height adjustability, allowing you to customize your vehicle's stance.
- Single-Adjustable Coil-Overs: Equipped with QA1 Proma Star shocks that offer exceptional ride quality. Easily switch between a smooth cruise or a more aggressive feel with a simple dial adjustment.
- Weld-In Installation: Weld-on design simplifies the installation process, eliminating the need for excessive fabrication or multiple trips to the parts store.
- Made in the USA: Proudly manufactured in Lakeville, Minnesota, ensuring high-quality craftsmanship.
Specifications
- Fitment: Designed for 3.25" axle tubes
- Upper Shock Mount Dimensions: 1-5/8" diameter x .095" wall, 40" long
- Included Components: Two single adjustable coilover shocks, two springs, a 40" long weld-in tube, and all mounting hardware
- Required Tools: QA1 spanner wrench (T114W or T115WHD)
Why Choose QA1?
With a best-in-class lifetime warranty, you can register your product at QA1.net/warranty for peace of mind. This system not only enhances your ride quality but also provides the durability and performance you need for any driving condition.
Customer Feedback
Users have praised the DS501-2001 for its straightforward installation and noticeable improvement in handling. Many appreciate the adjustable ride height feature, which allows them to fine-tune their vehicle's stance and performance to their liking. The ride quality has also received high marks, with drivers noting a smooth transition between settings on the coil-overs, making it versatile for both daily driving and spirited outings.
Other Part Numbers:
QA1 #qapDS501-2001
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
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 ExpertsThe 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 FacilityThe 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 RacingIf 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.
| Sale price | None |
| Wholesale price | $764.98 |
| Shipping |
Weight: 34.80 Length: 40 Width: 8 Height: 8 |
| Product Added At | Monday 23 December, 2024 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | Turn_API |
| View In Admin |
| Carb Approved | - |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Yes |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $648.29 | $847.44 | ? | $764.95 | ? | 2025-07-11 10:45:16 |
