64-70 Mustang Heidts Independent Rear Suspension Kit, Outboard Brakes

Key Product Features & Benefits:

• Precision-Engineered Control Arms: Tubular upper and lower control arms ensure predictable handling and accurate alignment.
• Adjustable Coil-Over Shocks: Customize ride height and dial in damping/rebound to your exact driving style.
• Superior Suspension Geometry: Vastly improved over stock for enhanced traction and alignment stability.
• Outboard Brake Design: Supports larger diameter rotors and caliper combinations for improved braking performance.
• High-Horsepower CV Shaft Kits: Efficiently transfer power to the pavement, reducing drivetrain loss and improving response.
• Flexible Drivetrain Compatibility: Designed to integrate with stock or upgraded drivetrains.
• Easy Installation: Mounts to stock rear frame rails with minimal welding and trunk floor modification.
• Fuel Tank Compatibility: Works with the original stock fuel tank.
• 58-Inch Track Width (Rotor Hub to Rotor Hub):  Close to Stock Rear End Track Width for Standard Wheel Size/Backspacing
• High-Horsepower CV Axle Shaft Assemblies: Performance CV Assemblies are included. If you have more than 65HP and/or want wider Mini-Tub Rear housings, contact us before ordering to discuss performance needs. 

 Benefits to Handling & Driving Experience:

Upgrading to an Independent Rear Suspension (IRS) dramatically enhances your classic Mustang’s agility, ride comfort, and road manners. Compared to a stock live axle, IRS allows each wheel to react independently for optimal performance.

• Sharper cornering and more predictable handling dynamics.
• Reduced body roll (especially with optional rear sway bar kit) and minimized wheel hop during hard launches.
• Improved ride comfort on rough or uneven roads.
• Superior traction and stability during both spirited and daily driving.

 Important Installation Notes: 

• Exhaust Routing: The stock exhaust must be custom routed to the rear or exit at the sides before the rear tires.
• Chassis Reinforcement: For high-horsepower applications, subframe connectors are strongly recommended to support and stiffen the unibody.
• Brake Compatibility: Factory disc brakes from 8” or 9” rear axles are not compatible with this custom IRS setup.
• Track Width: This Rear Suspension has a 58-inch Track Width (Hub Face to Hub Face), so many stock wheel/backspace sizes can be used.
  For Reference: 65-66 Mustangs have a 57.5-inch Stock track width, and 67-70 Mustangs have a 59.5-inch Stock track width
• Install Instructions PDF: See "Documents" Tab Above to download the Instructions PDF