Product Summary

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

  • Tubular steel upper and strutless lower control arms are made from .120" wall, 1" diameter tubing with screw-in ball joints and no-squeak rubber bushings
  • Heat treated forged steel stock height spindles retain factory geometry for proven Mustang II performance
  • Kit includes your choice of coil spring (choose from eight different spring rates) and twin-tube fixed-rate gas shocks
  • Your choice of manual or power rack-and-pinion steering units, which includes mounting bushings and tie-rod ends
  • Application specific (or universal) Mustang II crossmember not included and required for installation

Comes as a Kit

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Key Specs

MFG. Part #91034000
Front Suspension TypeIFS
Suspension Height Adjustment3.0-4.0 Inch Lowered
Control Arm StyleTubular
Shock TypeTwin Tube
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Speedway Motors 91034000 Details

  • Complete Mustang II front suspension kit system, minus crossmember and brakes
  • Independent front suspension kit includes control arms, springs, shocks, and more
  • Utilizes stronger tubular steel upper and strutless lower control arms
  • Choice of eight coil spring rates with black painted non-adjustable shocks
  • Available with manual or power rack-and-pinion steering systems with tie-rod ends
  • Forged steel Mustang II spindles with stock pin height included
  • Typical front-end drops of up to four inches can be had with stock height spindle
  • Welding is required for lower control arm gussets to crossmember

Why Convert to Mustang II Suspension?

It has been over 50 years since hot rodders stumbled across the second-generation Mustang’s independent front suspension (IFS) crossmember and its compact design that would fit easily in pre-war hot rods. The famed 1974-1978 Mustang II front end has been swapped into countless thousands of hot rods and muscle cars over the decades due to its compact size, ease of alignment, and the ability to upgrade to disc brakes and rack-and-pinion steering all at once. However, the supply of original Mustang II suspension crossmembers you would find in a salvage yard have long dried up. Thankfully, the aftermarket, including Speedway Motors, has answered enthusiast’s needs with brand new Mustang II crossmembers, both universal and application specific, to maintain the feasibility of Mustang II IFS swaps.

Of course, a Mustang II suspension bolt-in or weld-in crossmember is only part of the solution. Once you have your crossmember installed in your hot rod, muscle car, or classic truck you’ll need Mustang II front end kit specific suspension components, including control arms, springs, shocks, and more to complete the Mustang 2 front suspension installation. We make things easy for your Mustang II front suspension project by offering complete Mustang II IFS kit systems designed to work together to provide the best handling for your intended purpose and budget. From stock-type control arms and OEM-level springs and shocks to beefy tubular control arms, adjustable coilover shocks, and more, we offer the perfect Mustang 2 front end conversion kit you’re after.

Mustang II Control Arms Are Your Mustang II Suspension Build’s Starting Point

For those looking for entry level handling needs, the stock stamped steel upper and lower control arms will get the job done, allowing you to save your build budget for other needs. However, if you’re looking for better handling, appearance, and eliminating the OEM lower control arm strut rod support for additional tire clearance, we have put together a Mustang II IFS kit with our tubular steel upper and lower control arms with rubber bushings. These control arms are designed to use a stock-style coil spring and shock absorber. We include black painted 13.50-inch free height coil springs (available in eight spring rates to suit your vehicle’s front-end weight and ride height needs) and black painted fixed rate twin tube gas shocks. These springs will require trimming to achieve your desired ride height (which will vary by vehicle weight and options). Expect about up to a 4-inch drop with the included kit springs and stock height spindle, though a set of our Mustang II ride height adjusters can provide up to an additional 1.50 inches of adjustment if needed.

We do offer dop-in chrome springs if you prefer, or you can always step up to a Mustang II kit with coilover shocks with a wider range of spring rates and adjustability. The rest of the kit features forged stock height spindles, and your choice of manual or power rack-and-pinion steering assembly.

Spindles and Steering Round Out Your Mustang II IFS Kit

Our forged and heat-treated spindles provide a strong foundation for your Mustang II’s brakes, wheels, and tires versus cast spindles. The spindle features a stock pin height that retains factory suspension geometry and is fully machined for use with stock inner and outer wheel bearings, OEM-spec brake caliper (or caliper adapter bracket) and maintains the factory 7-degree ball joint and tie-rod end taper for true bolt on ease. These spindles work together with our Mustang II-spec disc brake kits available separately. We built this kit for those that want something more than the basic plain rotor and single piston caliper, allowing you to choose the best brake kit for your needs and budget independently of the Mustang II suspension.

Obviously, one of the key benefits of converting to a Mustang 2 front suspension is the upgrade to the precise control of rack-and-pinion steering from your old OEM frame mounted steering gear box. Rack-and-pinion steering provides better road feel, quicker turn-in, lower weight, and better packaging for engine swaps. While some prefer the simplicity of a manual rack for its bolt-in and go ability, we don’t force you to do so, as you have the option of either a manual rack or a power rack, both built with all new housing and internal components, and includes mounting bushings and outer tie-rod ends to connect your rack of choice to your spindles (tie rod extensions recommended for wide width applications). Simply pick up the necessary steering shafts and joints to connect the rack to your steering column.

Our Mustang II IFS kit and crossmember kit options make it easy to upgrade your project’s straight axle or early IFS with standard steering box to make room for engine swaps, better ride and handling, improved braking, and more. DIY-type installation can be accomplished easily in the home garage with the right tools and a competent welder, providing you with years of safer and more predictable driving that will make it fun to be behind the wheel of your ride once again.

Charts

Specs

Hub-to-Hub Kit (Less Crossmember)

  • New Tubular Control Arms
  • Rubber Bushings
  • New Stock Spindles
  • New Black Painted Coil Springs
  • New black painted Shocks
  • New Manual or Power Rack-and-Pinion
  • New Tie-Rod Ends

Speedway Motors 91034000 Specifications

KEY SPECS
MFG. Part #91034000
BrandSpeedway Motors
Front Suspension TypeIFS
Suspension Height Adjustment3.0-4.0 Inch Lowered
Control Arm StyleTubular
Shock TypeTwin Tube
Spring TypeCoil Spring
FinishNatural
Rotor DiameterNot Included
Spindle StyleFord Stock
Dropped SpindlesNo
Dropped AxleNo
Dropped Control ArmsNo
Spindles IncludedYes
Brakes IncludedNo
Steering IncludedYes
Shock AdjustabilityNon-Adjustable
Hardware IncludedYes
Welding RequiredYes
GENERAL
Sold in QuantityKit
NotesRequires Mustang II crossmember (sold separately)
Spring FinishPowder Coated
Air Springs IncludedNo
Frame Brackets IncludedYes
Mounting Hardware IncludedYes
Brake Lines IncludedNo
Brake Pads IncludedNo
Calipers IncludedNo
Coilover Springs IncludedNo
Crossmember IncludedNo
Rotors IncludedNo
Lower Ball Joints IncludedYes
Lower Control Arms IncludedYes
Upper Control Arms IncludedYes
Outer Tie Rod Ends IncludedYes
Spindle TypeStock Height
Front Sway Bar IncludedNo
Upper Ball Joints IncludedYes
Control Arm FinishNatural
Control Arm MaterialSteel
Front Caliper IncludedNo
Front Rotor IncludedNo
Front Spindles IncludedYes
Rack and Pinion IncludedYes
Shocks IncludedYes
Bushing MaterialRubber

Questions & Answers

4 Questions • 4 Answers

What diameter coil spring is it

by Ruben

• 2 years ago

1 answer

What would be the ideal spring rate to use for a 55 chevy 3100 truck with a sbc?

by Daniel

• 9 years ago

1 answer

Please confirm this kit is compatible with a 1965 Mustang 289 auto trans with aftermarket power steering. Thanks

by JLO

• 9 years ago

1 answer

Will 14 inch wheel clear the brake rotors?Thanks

by Larry

• 9 years ago

1 answer

4 of 4 questions shown

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