QA1 DM501-2501 HD Pro Rear Weld-In Coilover Kit, MOD Series Shock

QA1's Pro Rear Systems are designed for vehicles with a 1700-2600 lbs. rear axle weight, providing enhanced strength and support for both street and race applications.
The system offers ¾” increments of adjustment via axle-mounted brackets and fine-tuning through the coilover shocks, allowing for full control over the vehicle's stance.

Spring Rate:

250 lb

$2,179.95

Factory Shipped

$2,415.03

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Product Summary

250 lbs. Spring Rate, Shocks Included, Welding Required

QA1's Pro Rear Systems are designed for vehicles with a 1700-2600 lbs. rear axle weight, providing enhanced strength and support for both street and race applications.
The system offers ¾” increments of adjustment via axle-mounted brackets and fine-tuning through the coilover shocks, allowing for full control over the vehicle's stance.
Feature modular valve packs for easy tunability and adjustability, ideal for street use and high-performance drag racing.
The kit includes all necessary hardware and bracketry, making it a simple weld-in solution, proudly made in the USA.
250lb/in. Spring for 3.25in. Axle Tube

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Key Specs

MFG. Part #	DM501-2501
Spring Rate	250 lbs.
Shocks Included	Yes
Shock Adjustability	Double Adjustable
Hardware Included	Yes

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QA1 DM501-2501 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. MOD Series Coil-Overs Designed for top builds wanting more tunability and aggressive force curves, these shocks feature modular valve packs, allowing valving changes without removing them from the car. With high-speed and low-speed bleed adjustability, these shocks are both streetable and able to get high-horsepower cars down the drag strip. 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. Made in the USA QA1’s Heavy Duty Pro-Rear Systems is proudly made in Lakeville, Minnesota. 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 T121W.

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WARNING:

Cancer and Reproductive Harm – www.P65Warnings.ca.gov

QA1 DM501-2501 Specifications

KEY SPECS
MFG. Part #	DM501-2501
Brand	QA1
Spring Rate	250 lbs.
Shocks Included	Yes
Shock Adjustability	Double Adjustable
Hardware Included	Yes
Welding Required	Yes
Crossmember Included	No

GENERAL
Sold in Quantity	Kit
GTIN Code	806990169952
Notes	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 T121W.
Shock Body Material	Aluminum
Compressed Length	11.5"
Extended Length	16.88"
Finish	Powder Coated
Adjustable Mounting Bracket Included	Yes
Adjustable Valving	Yes
Gas Charged	No
Lower Mount	Bearing
Number of Valving Selections	576
Upper Mount	Bearing
Spring Finish	Gray/Silver
Coilover Springs Included	Yes

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