HK42-GMF2RS Level 2 Handling Kit with OE Width 9in. Housing, 70-74 GM F Body

QA1’s Handling Kit is a complete suspension solution for ’70-‘74 Camaro/Firebird (GM F-body) owners aiming to enhance street and track performance. This kit replaces front and rear suspension, featuring adjustable coilovers and a 4-link setup optimized for wider wheels and tires, along with a custom QA1 9" rear housing for peak performance.

SIGNIFICANT HANDLING IMPROVEMENTS

QA1’s lightweight tubular control arms equipped with low-friction ball joints and polyurethane bushings minimize flex and improve front end geometry for superior handling and response.  The adjustable four link design eliminates wheel hop, improves traction and offers predictable, tunable handling.  Front and rear sway bars along with subframe connectors tie the chassis together to keep the car planted in the most aggressive of corners.

OPTIMAL STANCE

Factory coil springs and leaf springs limit your ability to achieve the perfect stance on your Camaro or Firebird. Upgrading to QA1’s coilovers and a tubular 4-link provides 0 to -2 inches of adjustability in the front and 1.25 inches of ride height adjustability in the rear, letting you dial in a lowered, aggressive stance. The four-link kit shifts all suspension components inward, providing additional clearance for wider wheels and tires.

PERFORMANCE 9" REAR HOUSING

Strength & Durability

• Fabricated center section for added strength
• Trailing arm brackets minimize flex under load

• Heavy-duty 3" axle tubes and 31-spline axles support up to 650HP; housing rated for 800HP

Finish & Maintenance:

• Durable powder coat for a sleek, long-lasting finish
• Includes drain plug, fill plug, and jack pad for easy maintenance
• High-quality T-bolts, studs, and roller bearings included for easy assembly

Specifications:

• Factory wheel mounting width of 61-1/8”
• Equipped with Big Ford “New Style Torino Axle Flanges” with 2.5” axle offset
• Bolt pattern: 5x4-3/4” for easy wheel compatibility
• Wheel studs: ½” x 3” for alloy wheels

• Requires third member for Ford 9” housings with 31 spline axles

EASY INSTALLATION

The QA1 Handling Kit offers a very straightforward install procedure that even a novice can handle.  The rear crossmember requires minimal, but easy MIG welding.  Once in place, the rear end housing and entire front suspension are a direct bolt-in.

MADE IN THE USA

These products are proudly made in the USA, ensuring high quality and durability.

LIFETIME WARRANTY

Register at QA1.net/warranty for lifetime coverage on your QA1 shocks.

FEATURES & BENEFITS

• Complete Suspension Kit: Upgraded performance for street and track.
• Adjustable Coilovers & 4-Link: Four corner height adjustability.
• Custom 9" Rear Housing: Supports up to 800HP.
• Lightweight Front Suspension: Enhances control and reduces flex.
• Easy Installation: Bolt-on with minimal welding required.

FITMENT NOTES

• Wheel and tire fitment should be verified on the vehicle
• Mini tubs required for maximum tire width
• Some welding required
• Exhaust modifications may be necessary