QA1 · New
QA1 75-81 GM F-Body Level 3 Handling Kit
MPN HK53-GMF2RN · Store SKU qapHK53-GMF2RN
Supplier stock checked 11/7/2026, 8:20:45 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Oversized / freight item — shipping is quoted separately. Free shipping does not apply. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
PRODUCT OVERVIEW QA1's Handling Kit is the premier suspension upgrade for '75-81 Camaro/Firebird (GM F-body) owners seeking exceptional handling. This kit replaces the front and rear suspension with QA1 MOD series 4-way adjustable coilovers and a narrowed QA1 9" rear housing, and four-link optimized for wider wheels and tires. HUGE HANDLING GAINS Experience superior handling with lightweight control arms that improve geometry and reduce flex. The adjustable four-link design eliminates wheel hop and improves traction and handling. Front and rear sway bars and subframe connectors minimize roll in tight corners. AGGRESSIVE STANCE Factory springs limit stance, but QA1's MOD series coilovers and 4-link offer 2 inches of front adjustability and 1.25 inches in the rear for ideal ride height. The kit allows for massive 12-inch-wide wheels with 335 tires. PERFORMANCE 9" REAR HOUSING Strength: Fabricated center section with 3 OD, wall axle tubes support 800HP and 31 spline axles are rated to 650HP. Features: Standard options include powder coat, drain and fill plugs, jack pad, and all necessary hardware. Specs: Narrowed wheel mounting width: 56-1/8 (narrowed 2-1/2 per side for mini tubs) Big Ford New Style Torino Axle Flanges with 2.5 axle offset Bolt pattern: 5x4-3/4 for easy wheel compatibility Wheel studs: x 3 for alloy wheels Requires third member for Ford 9 housings with 31 spline axles EASY INSTALL The QA1 Handling Kit features a straightforward installation. The rear crossmember needs minimal MIG welding, and all other components are direct bolt-in. FITMENT NOTES Narrowed housing is recommended for custom offset wheels and mini tubs Verify wheel and tire fitment on the vehicle Mini tubs required for maximum tire width Some welding may be necessary Exhaust modifications may be needed QA1 HK53-GMF2RN Level 3 Handling Kit with Narrowed 9in. Housing, 75-81 GM F Body QA1 HK53-GMF2RN Level 3 Handling Kit with Narrowed 9in. Housing
Manufacturer fitment & guides
Check HK53-GMF2RN against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Freight shipping required.
- California Proposition 65: Y
