Product Summary

74-78 Mustang II, 74-80 Pinto, 75-80 Bobcat, Natural

  • Works with all Speedway and Heidt's Mustang II crossmembers
  • Features 5/8" narrower tubular control arms reducing the track width to 1.25" overall allowing more room between tire and fender
  • Standard style shocks and springs with your choice of spring rate to suit your particular vehicle weight
  • 11" vented rotors dissipate heat and create more torque on the wheel, features 5 on 4-1/2" bolt pattern with 1/2"-20 studs, common GM metric calipers with a 2-1/2" bore for proven braking performance and serviceability
  • Standard height Mustang II spindles are constructed of 1045 heat-treated alloy steel for strength and retain factory geometry for years of service

Key Specs

Front Suspension TypeIFS
Suspension Height AdjustmentStock Height
Control Arm StyleTubular
Shock TypeTwin Tube
Spring TypeCoil Spring

Need To Know

Quick and Easy Returns

Return Policy


Includes 5/8" narrower upper and offset strutless lower control arms, new standard spindles, rubber brake lines, new black stock type springs and shocks, new manual or rebuilt power rack & pinion with bushings and new tie rods. The 11" brake kit features GM Metric calipers, with your choice of 5 x 4-1/2" or 5 x 4-3/4" bolt pattern.

  • Works with all Speedway and Heidts crossmembers 
  • Kit Includes:
    • 5/8" narrower Tubular Upper and Lower Strutless Control Arms
    • New Stock Spindles, Springs, and Shocks
    • Rack and Pinion with bushings and tie rods
    • 11" brake kit with GM calipers
  1. Add proper crossmember to complete kit.

Note: Additional items may be needed to complete installation.  You may want to include our Mustang II ride height adjusters (91034444) for installation with these IFS kits to fine tune your final ride height up to 2".

Note:  If using these kits with Speedway or Heidts crossmembers for 1948-1956 Ford Pickups, 1955-1959 Chevy Pickups, or universal crossmembers for 27-1/2" - 33-1/2" frame widths, you will be required to purchase 2" Inner Tie Rod Extensions (91034345) or (91034346).

Note:  Our Mustang II springs that we currently offer are all 13.5” long and require trimming to the length needed for each individual application. Weight rating changes as the spring is shortened. When installing in the vehicle the flat end goes up into the upper hat and the end with the “pigtail” goes down into the lower control arm. Spring is rotated when installing to position the pigtail properly. Springs TOO long will have a tendency to NOT sit properly on the lower arms and actually in some cases bow outward causing spring bind.

Item Details

'Must include Mustang II crossmember for complete installation (sold separately)



MFG. Part #
BrandSpeedway Motors
Front Suspension TypeIFS
Suspension Height AdjustmentStock Height
Control Arm StyleTubular
Shock TypeTwin Tube
Spring TypeCoil Spring
Bolt Pattern
Rotor Diameter11 Inch
Spindle StyleFord Stock
Dropped SpindlesNo
Dropped AxleNo
Dropped Control ArmsNo
Spindles IncludedYes
Steering IncludedYes
Welding RequiredYes