Mustang II Coilover IFS Tubular Control Arms Stock 4.5
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
- Coil-over spring and shock assembly is fully adjustable using included aluminum spanner nut for ride height adjustment
- Coilover Springs included in your choice of 4 rates of 375, 500, 600, and 700 lbs/inch to fine tune and perfect the ride to your front axle chassis weight
Build Your Kit
You're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
Details
Info
As featured on Classic Truck’s Week to Wicked. Watch the transformation here!
Hub-to-hub kit includes standard upper and offset strutless lower control arms, new standard spindles, rubber brake lines, coilovers, 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
- Coilover Springs
- Rack and Pinion with bushings and tie rods
- 11" brake kit with GM calipers
- Add proper crossmember to complete kit.
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).
Item Details
'Must include Mustang II crossmember for complete installation (sold separately)
Notes
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.
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: 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.
Mustang II Track Width Options (PDF)
Specs
Hub-to-Hub Kit (Less Crossmember)
- Tubular Upper Control Arms
- Tubular No-Strut Lower Control Arm
- New Stock Spindles
- Coil-overs w/ Spring
- Fixed Valving
- Spring Adjustable from stock to 2" lower
- 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)
Tubular Upper Control Arm Instructions (PDF)
Spindle Instructions (PDF)
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What's In The Kit
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Speedway Mustang II Stock-Height Steel SpindlesPart # 91034307Qty x 1
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QA1 ME303 Coil-Over Shocks for Mustang IIPart # 2553336Qty x 2
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Replacement Springs for Mustang II CoiloversPart # 2558MQty x 2
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QA1 Pin Cross 0.750" O.D.Part # 2559035143Qty x 2
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Mustang II Power and Manual Rack & PinionsPart # 91034340Qty x 1
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Speedway Mustang II Steering Rack & Pinion Mounting BushingPart # 91034341Qty x 2
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Mustang II Outer Tie Rod End, Manual VersionPart # 91034316-MANQty x 2
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Pinto-Mustang II Spindle Nut & Washer KitPart # 910615074Qty x 1
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GM Metric Caliper Bracket Set for Mustang II SpindlePart # 91631914Qty x 1
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IMCA Approved 1978-88 GM Metric RH Brake Caliper, 7/16-20 InletPart # 91031045-RQty x 1
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IMCA Approved 1978-88 GM Metric LH Brake Caliper, 7/16-20 InletPart # 91031045-LQty x 1
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Speedway 1974-80 Ford 11 Inch Front Disc Brake RotorsPart # 91031066Qty x 2
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Speedway Soft Street Brake Pads, GM Metric 1978-Up D154Part # 9193381Qty x 1
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Bearing-Seal Kit for Two Mustang II Brake RotorsPart # 91031000Qty x 1
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Speedway Mustang II Tubular Lower A-Arms for Coilovers, No Strut RodPart # 91035335Qty x 1
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Speedway Mustang II Upper Control Arm T-BoltsPart # 91034310-2Qty x 1
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Mustang II Rack & Pinion Bolt KitPart # 91034342-2Qty x 1
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9/16 Inch Thick SAE Thru-Hardened WashersPart # 91034323-2Qty x 1
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9/16 Inch Fine Thread Tie Rod NutsPart # 91034Qty x 1
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Speedway Mustang II Coil Spring Rubber Isolator CushionPart # 91034343Qty x 1
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Mustang II Rack & Pinion Bolt Kit - For Use With Rack SpacersPart # 91034342-3Qty x 1
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Mustang II Rack Spacer, 3/4 InchPart # 9101023Qty x 2
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Speedway Mustang II Tubular Upper Control Arms, Stock Width, PairPart # 91035320Qty x 1
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Front Disc Brake Hardware KitPart # 9103141.1Qty x 1
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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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Day 1 afternoon update of the Speedway Motors and Classic Trucks Week to Wicked classic Chevy project.
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Day 2 morning recap of the Speedway Motors Week to Wicked project with Classic Trucks Magazine.
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Day 4 afternoon update of the Speedway Motors and Classic Trucks Week to Wicked classic Chevy project.
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We take a look at some parts going into a 1951 Chevy Truck project. We highlight a few key pieces including the 1947-1954 Chevy Truck EFI Fuel tank.