Mustang II IFS, Standard Tubular Control Arms, Stock Springs and Spindles
74-78 Ford Mustang II, 74-80 Ford Pinto, 75-80 Mercury Bobcat, IFS Front Suspension Type
- Works with all Speedway and Heidt's Mustang II based crossmembers
- Heat treated forged steel spindles that retain stock factory geometry
- Standard Tubular Upper and Lower Strutless Control Arms are made from full .120 wall, 1" diameter tubing, fixture welded with screw-in ball joints and no-squeak rubber bushings
- New 13.5" stock style black powder coated springs available in 8 spring rates from 275 thru 425 to fine tune that customized ride you require
- Choose a new Power or Manual Rack and Pinion which includes mount bushings and tie rod ends
Includes standard 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:
- Standard 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
Must include Mustang II crossmember for complete installation (sold separately)
Spring Rate Chart (Link)
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).
Why go with tubular control arms? The most obvious reason is the looks. Tubular control arms and strut rods give your hot rod a much cleaner and hi-tech appearance than the stock type do. Also, when using the strutless style, you gain more clearance because you no longer have the strut rod or its mount in the way of headers, etc. Another bonus is that the tubular control arms are available in 5/8" narrower than stock, which helps tuck the wheels up under the fenders without having to buy expensive special offset wheel. When using 5/8" narrower control arms, 5/8" must be removed from each inner tie rod end.
- 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” (tangential end) 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.
- Applications where the vehicle has fenders that mount directly on top of the frame, the fenders will require extensive modification to allow clearance for the upper cross member section.
- These kits require the purchase of a Mustang II crossmember (sold separately). Many of our Speedway and Heidts brand crossmembers will work with Manual Rack and Pinion Steering ONLY. When purchasing our crossmembers, be sure to look for their correspondence with power racks if selecting a power rack with our Mustang II IFS kits. With all Mustang II aftermarket crossmembers, spacers and longer bolts must be used with the later (Fox-body) power rack (spacers included).
Finding the right control arms means finding the correct track width: Our Mustang II kits feature 11" rotors. Track width, which is hub face to hub face where the wheels bolt on, will be 57.5". Wheel and tire combination and customer preference determine whether to use the
standard control arms or the 5/8" narrower. The narrower control arms reduce the track with by a total of 1.25". See the link below for
various track widths with different options.
Spindle Instructions (PDF)
What's In The Kit
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Q & A
Speedway Motors and Classic Trucks joined teams to build a 1952 Chevy truck for the newest Week to Wicked build. Jason and Tom talk about the Speedway Motors Mustang II front suspension kit used on the build.
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