Mustang II IFS w/ New Stock Control Arms, Springs, Shocks, and Spindles
74-78 Ford Mustang II, 74-80 Ford Pinto, 75-80 Mercury Bobcat, IFS Front Suspension Type
Details
Info
You get brand new stamped steel upper and lower control arms with polyurethane bushings, new spindles, new black stock-type springs, new shocks, new manual rack & pinion with bushings or remanufactured power rack & pinion with bushings, and an 11" brake kit featuring GM Metric-style calipers and rubber hoses, with your choice of 5 x 4-1/2" or 5 x 4-3/4" bolt patterns.
- Works with most Speedway and Heidts crossmembers (be sure to check control arm correspondence when choosing crossmember for your vehicle)
- These kits are compatible with your application based on which crossmember you have.
- Kit Includes:
- New stamped steel upper and lower control arms with polyurethane bushings
- New spindles
- New black stock-type springs
- New shocks
- Rack and Pinion with bushings and tie rods
- 11" brake kit with GM calipers
- Crossmember NOT included - Add proper crossmember to complete kit.
Spring Rate Chart (Link)
WARNING: To offer our customers a better range of spring rates, the springs included in this kit are now black in color, please note that they are no longer chrome plated.
Note: These IFS kits will require use of strut rods and brackets for the lower control arms. These kits will work with our replacement strut rod (91034315) and brackets (91034358). If using the stock style control arms we suggest using the tubular strut rod number (91034322) for additional clearance and better suspension geometry.
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).
Item Details
Must include Mustang II crossmember for complete installation (sold separately)Notes
Note: 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.
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.
Note: 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.
When used in conjunction with upgraded disc brake kits, due to possible interference between the end of the control arm and the brake rotor when at ride height, it may be necessary to remove minimal material from the end of the control arm to achieve adequate clearance at this location.
Mustang II Track Width Options (PDF)
Specs
Hub-to-Hub Kit (Less Crossmember)
- New Control Arms
- Polyurethane Bushings
- New Strut Rods w/ Bushings
- New Stock or 2" Dropped Spindles
- New Black Painted Coil Springs
- New Chrome Shocks
- New Manual or Power Rack & Pinion
- New Tie Rod Ends
- New 11" Brake Kit
- 5x4-1/2" or 5x4-3/4" Bolt Circle
Charts
Front Disc Brake Installation Instructions (PDF)
Spindle Instructions (PDF)
What's In The Kit
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Reviews
Q & A
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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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Get up to date with the latest rule change and successfully update your sprint car support bars with the help of our very own Jason Martin!