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Vivid Racing Gear 
QA1 Pro-Rear System DD501-12110
Revamp your vehicle's rear suspension with the QA1 Pro-Rear System DD501-12110. This system is engineered for performance enthusiasts who demand precision and reliability, whether on the drag strip or cruising the streets.
Key Features
- Adjustable Options: Choose between double adjustable, single adjustable, or ride-sensitive non-adjustable configurations to suit your driving style.
- Smooth Adjustments: Enjoy evenly spaced valving changes throughout the adjustment range, ensuring a seamless experience without any jumps between clicks.
- Versatile Applications: Ideal for drag racing, street performance, and street rod setups, this system adapts to a variety of driving conditions.
- High-Quality Components: Built with lightweight aluminum, this kit includes coil-over shocks and springs, ensuring durability and performance.
- Revalveable and Rebuildable: Both the QA1 factory and authorized service centers can revalve and rebuild your shocks, extending their lifespan and performance.
Specifications
- Shock Type: Available in Simultaneous Compression and Rebound Single Adjustable (DS) or Independent Compression & Rebound Double Adjustable (DD).
- Spring Rate: Comes with springs rated at 110 lbs, providing the perfect balance of comfort and performance.
- Axle Tube Compatibility: Fits 3" or 3.25" diameter axle tubes, making it a versatile choice for various vehicles.
- Precision Engineering: Features a precision machined aluminum piston with a PTFE piston band, ensuring smooth operation and longevity.
- Sealing System: Incorporates a three-step sealing system to prevent leaks and maintain performance.
- Made in the USA: Proudly manufactured in the USA, ensuring high standards of quality and craftsmanship.
What’s Included
The DD501-12110 kit comes complete with:
- (2) Proma Star Shocks or Aluma Matic Shocks
- (2) Linear or Variable Rate Springs
- All necessary mounting hardware
Customer Insights
Users have praised the QA1 Pro-Rear System for its exceptional adjustability and smooth ride quality. Many have noted significant improvements in handling and stability, especially during high-speed maneuvers. The ease of installation and the comprehensive mounting hardware included in the kit have also received positive feedback.
Why Choose the DD501-12110?
If you're looking for a reliable suspension upgrade that delivers performance and adjustability, the QA1 Pro-Rear System DD501-12110 is an excellent choice. With its robust construction and thoughtful design, it promises to enhance your driving experience on any terrain.
Other Part Numbers:
QA1 #qapDD501-12110
⚠ 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 | $972.99 |
| Shipping |
Weight: 29.80 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 | $824.57 | $1,077.87 | ? | $972.95 | ? | 2025-07-11 10:45:06 |
