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 seaml
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Hard To Find Qa1 Hd Pro Rear Weld-in Coilover Kit 300lb/in. S-adj. 3.00in Web Only Deal [uQYzExrw]
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. Single-Adjustable Coil-OversQA1 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 InstallationEach 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 WarrantyRegister at QA1.net/warranty for lifetime coverage of your QA1 shocks.Made in the USAQA1’s Heavy Duty Pro-Rear Systems is proudly made in Lakeville, Minnesota. Fitment NotesWelding required Designed for 3.00†axle tubes Included tubular upper shock mount dimensions are 1-5/8†diameter x .095 wall, 40†longRequires use of QA1 spanner wrench T114W or T115W
What Our Customers Say
January 28, 2026
Absolutely no complaints!
This is a really nice and a very solid product.
- Kristine L..
January 28, 2026
Absolutely no complaints!
This has become a crucial tool for me.
- Owen S..
January 28, 2026
Absolutely no complaints!
I’m wowed by the quality at this price point.
- Dominic D..
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