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QA1

Level 2 Full Vehicle Handling Kit with 9 in. housing

Part Number HK02-FM02RS (107370301)
$8,594.95 $10,140.87 SAVE 15%

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Description

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. 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.

Fitment

This part fits the following vehicles.

  • 1967-1970 Ford Mustang

Features & benefits

  • 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”
  • 5x4.5” bolt pattern compatible with most wheels
  • Black powder-coat finish for durability and a clean appearance
  • 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
  • Convenient solution - this front end kit includes left and right side suspension components to ensure a complete repair
  • Premium components - this kit uses extended-life components with low-friction polymer bearings and premium synthetic grease to ensure a long service life
  • Application-specific - this kit has been engineered to deliver factory-like feel and performance on specific vehicles and equipment
  • Quality tested - this part has undergone try-on, corrosion and material testing to ensure a quality fit and lasting durability

Specifications

Air Adjustable No
Bushing Color Black
Bushing Material Polyurethane
Coil Spring Color Silver
Coil Spring Insulator(s) Included No
Coil Spring Material Chrome Silicon Alloy
Country Of Origin US
Front Shocks Compressed Length 11.13
Front Shocks Relaxed Length 15
Grade Type Performance
Manufacturer Part Number HK02-FM02RS
Rear Shocks Compressed Length 11.13
Rear Shocks Relaxed Length 16.38
Street Legal No
Strut Mount Insulator(s) Included No
Suspension Type Spring
UPC 806990234766

Warranty

1 Year

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).

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