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Suspension and Components Shocks, Struts, Coil-Overs and Components

QA1 Precision Products, Inc

QA1 HD Pro Rear Weld-In Coilover Kit 250lb/in. S-Adj. 3.25in

$886.22 $817.29 Save $68.93

SKU: Q00B DS501-2501

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: DS501-2501

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 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. Single-Adjustable Coil-Overs QA1 single adjustable Proma Star shocks deliver exceptional ride quality and performance. With the simple turn of a dial, you can effortlessly switch between a comfortable cruise and a more aggressive feel, making them ideal for daily driving or twisty backroads. 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. 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 T114W or T115W

Features:

  • Excellent DIY solution for drag, street performance & street rodders alike
  • Available with MOD Series, double, single or non-adjustable valving options
  • All mounting hardware included
  • Made in the USA

HD Pro Rear System includes two single adjustable coilover shocks, two springs, 40" long weld-in tube, and all mounting hardware.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

This HD Pro Rear Weld-In Coilover Kit features single adjustable shocks and is designed for vehicles with a rear axle weight of 1700-2600 lbs., offering robust support for both street and race applications. It provides 9 inches of height adjustment in ¾ inch increments, allowing precise stance control. The QA1 Proma Star shocks offer easy tuning for ride comfort and performance, ideal for both daily driving and spirited handling.

Fitment

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Specifications

BrandQA1 Precision Products, Inc
Part NumberQ00B DS501-2501

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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