QA1 HK02-FM02RS Level 2 Handling Kit w/ 9" housing, 67-70 Mustang

Upgrade your classic Mustang’s ride, handling, and stance with QA1’s Level 2 Full Vehicle Handling Kit. Engineered specifically for 1967–1970 Mustangs, this all-in-one system replaces factory suspension with modern coilovers, tubular control arms, a rear 4-link, and a QA1 9” housing — everything you need to transform your car into a refined, street-ready performer.

MODERN HANDLING FOR CLASSIC MUSCLE

Factory suspension setups simply can’t keep up with today’s power or driving expectations. QA1’s modern geometry and tunable coilovers deliver flatter cornering, better traction, and a smoother ride. The included 9” housing integrates directly with QA1’s triangulated 4-link, creating a rigid, unified rear suspension that’s built to handle power while keeping your Mustang comfortable and composed.

HANDLING YOU CAN DIAL IN

Double adjustable coilovers allow independent control over compression and rebound, so you can fine-tune ride quality and performance for your exact driving style - whether that’s highway cruising or weekend corner carving.

BUILT STRONG FOR BIGGER CARS

The 1967–1970 Mustangs are larger and heavier than their predecessors, so this kit includes 400 lb/in front springs for ideal balance and support. Combined with QA1’s tubular arms and 4-link rear, you get improved weight transfer, reduced body roll, and a more planted feel through corners.

SPECIFICATIONS

• Performance Level: Level 2
• Includes Shocks: Yes
• Front Spring Rate: 400lb/in.
• Rear Spring Rate: 150lb/in.
• Shock Valving: Double Adjustable
• Axle Shaft Splines: 31
• Width (Wheel mounting surfaces): 59 3/8in
• Brake Flange: Big Ford "New Style Torino"
• Brake Offset: 2.5"
• Bolt Pattern: 5x4.5 in

FEATURES & BENEFITS

• Application-specific fit for 1967–1970 Ford Mustangs
• Complete front-to-rear handling package in one kit
• Double adjustable QA1 Pro Coil shocks allow independent compression and rebound tuning
• 400 lb/in front springs tuned for the heavier chassis
• Tubular upper and lower control arms improve geometry and steering response
• Front and rear sway bars reduce body roll and improves cornering response
• Rear triangulated 4-link eliminates wheel hop and improves traction
• Includes QA1 fabricated 9” rear housing with 31-spline 1541H alloy axles rated to 650 HP
• Heavy-duty 3” OD, ¼” wall axle tubes handle up to 800 HP
• Big Ford “New Style Torino” flanges for brake compatibility
• Adjustable front ride height: stock to –2”
• Adjustable rear ride height: stock to –3”
• 5” bolt pattern compatible with most wheels
• Black powder-coat finish for durability and a clean appearance

EASY INSTALLATION & SERVICEABILITY

QA1’s front suspension bolts directly to factory mounting points, while the rear 4-link includes self-fixturing weld-in brackets that ensure perfect geometry and alignment. The QA1 9” housing arrives ready to install, complete with drain and fill plugs, vent port, and jack pad for simple servicing down the road.