What does 'coil-over' mean?

A coil-over shock has the coil spring physically mounted around the shock body. This combines the spring and shock into one compact unit, simplifying installation and improving suspension response. It also allows for ride height adjustment by raising or lowering the spring perch.

What are the benefits of being able to re-valve the shocks?

Re-valving allows you to fine-tune the shock's damping characteristics to match your driving style, track conditions, or vehicle setup. By changing the valve packs, you can adjust how quickly the shock compresses and rebounds, optimizing handling and traction.

What is included in the kit?

This QA1 kit includes the MOD Series shocks and coil springs. Check the manufacturer's website for a detailed list of included hardware, as well as any recommended tools or installation instructions.

QA1 78-88 GM G-Body Pro Rear Coil-Over System - MOD Series - 12in x 220lbs/in - Aluminum

Specifications

Brand: QA1
Part #: RCK52450
UPC: 806990155108

QA1 78-88 GM G-Body Pro Rear Coil-Over System - MOD Series - 12in x 220lbs/in - Aluminum

Name: QA1 78-88 GM G-Body Pro Rear Coil-Over System - MOD Series - 12in x 220lbs/in - Aluminum
Brand: QA1
Price: 2401.69 USD
Availability: InStock

$2401.69

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Rear coil-over kit for 1978-1988 GM G-Body cars. Re-valve in minutes with the MOD Series shock.

Key Features

QuickTune Technology — dry modular valve packs can be swapped out easily
MOD Series shock — re-valve in minutes
Aluminum construction — lightweight
12in shock with 220 lbs/in spring rate — optimized for G-body applications
Medium compression and rebound valve packs come standard

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Don't be limited to adjustments! Completely re-valve in minutes with the MOD Series shock. Designed specifically to meet the demands required by today's high performance drag race and handling/pro-touring cars, QA1's multi-patent-pending MOD Series shock will transform the way racers respond to changing track conditions and configurations. The key element to this tunability is QuickTune Technology: dry modular valve packs that can easily be swapped out, all while the shock remains on the car. An industry first, the MOD Series shock can quickly and easily be revalved without interrupting the oil path or opening the shock up for debris and air contamination. Medium compression and rebound valve packs come standard