QA1 BW03-GMG1 Level 3 Big Wheel Suspension Kit 78-88 GM G-Body MOD Series

The QA1 BW03-GMG1 is a complete Level 3 Big Wheel Suspension Kit engineered for 1978–1988 GM G-Body vehicles. This bolt-in system is purpose-built to accommodate wheels up to 24" in diameter, delivering a combination of aggressive stance and serious performance capability for street driving or drag racing.

MOD Series Coilover Shocks:

At the heart of this kit are QA1's 4-way adjustable MOD Series coilover shocks, offering independent control of both high- and low-speed compression and rebound valving. Front and rear coilovers allow precise ride height adjustment — raise the front up to 2" above stock height, or dial the rear anywhere from 1" above to 3" below stock. A spanner wrench is included for quick, tool-free height adjustments.

Tubular Control Arms:

Redesigned tubular upper and lower control arms correct front suspension geometry specifically for large-diameter wheel fitment. These arms are lighter and stronger than OEM units and are engineered to maintain proper suspension angles with 24" wheels and tires.

High-Clearance Sway Bars:

The front sway bar is 4" narrower than OEM, preserving full steering lock with 24" wheels and is compatible with both stock and notched front frame rails. The rear anti-roll bar reduces body roll and improves 60-foot times on the drag strip.

Adjustable Trailing Arms:

Adjustable upper and lower rear trailing arms allow you to precisely center the rear axle in the wheel well, providing the clearance needed for large wheel and tire combinations. Compatible with factory rear end housings.

Key Features:

• Accommodates up to 24" wheels
• 4-way adjustable MOD Series front and rear coilover shocks
• Front ride height: up to +2" above stock
• Rear ride height: +1" to -3" from stock
• Tubular control arms with corrected geometry for big wheel applications
• High-clearance front sway bar — 4" narrower than OEM
• Rear anti-roll bar included
• Adjustable upper and lower rear trailing arms
• Aluminum spanner wrench included
• Powder-coated components with all necessary hardware
• Compatible with factory rear end housings
• California Prop 65 Warning (Emissions Code 4)

All components arrive powder-coated and ready to install with the necessary hardware, making this a straightforward garage install or shop job.