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
  • Larger 11" vented rotors have 1/2"-20 studs and can be had in Ford 5 on 4-1/2" or GM 5 on 4-3/4" bolt patterns
  • '78-'88 GM Metric brake calipers include brake pads, brake hoses, and mounting brackets
  • Your choice of manual or power rack-and-pinion steering units, which includes mounting bushings and tie-rod ends
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Key Specs

MFG. Part #
Front Suspension TypeIFS
Suspension Height Adjustment3.0-4.0 Inch Lowered
Control Arm StyleTubular
Shock TypeTwin Tube
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Need To Know

Quick and Easy Returns

Return Policy

Details

  • Complete Mustang II front suspension kit system, minus crossmember
  • 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
  • Updated 11-inch disc brakes use popular GM Metric single piston calipers
  • Rotor options include 5x4.5-inch Ford and 5x4.75-inch GM wheel bolt patterns
  • 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 11-inch disc brakes, forged stock height spindles, and your choice of manual or power rack-and-pinion steering assembly.

Spindles, Brakes, 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 11-inch disc brake kit that features Ford Granada-style vented disc brake rotors (available in either Ford or GM small car wheel bolt patterns) and GM Metric single piston calipers to create an affordable, yet effective braking system for your vehicle. We even include the brake pads and hoses to connect to your frame’s hard line.

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
  • New 11" Brake Kit
  • 5x4-1/2" or 5x4-3/4" Bolt Circle

Specifications

KEY SPECS
MFG. Part #
BrandSpeedway Motors
Front Suspension TypeIFS
Suspension Height Adjustment3.0-4.0 Inch Lowered
Control Arm StyleTubular
Shock TypeTwin Tube
Spring TypeCoil Spring
FinishNatural
Bolt Pattern
Rotor Diameter11 Inch
Spindle StyleFord Stock
Dropped SpindlesNo
Dropped AxleNo
Dropped Control ArmsNo
Spindles IncludedYes
Brakes IncludedYes
Steering IncludedYes
Caliper PistonsSingle
Caliper FinishNatural
Shock AdjustabilityNon-Adjustable
Hardware IncludedYes
Rotor TypeSolid/Vented
Welding RequiredYes
GENERAL
Sold in QuantityKit
NotesRequires Mustang II crossmember (sold separately)
Spring FinishPowder Coated
DrilledNo
Air Springs IncludedNo
Frame Brackets IncludedYes
Mounting Hardware IncludedYes
Brake Lines IncludedYes
Brake Pads IncludedYes
Calipers IncludedYes
Coilover Springs IncludedNo
Crossmember IncludedNo
Rotors IncludedYes
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 Spindles IncludedYes
Shocks IncludedYes
Bushing MaterialRubber

Ratings & Reviews

4.6

38 Reviews

Overall Assessment

Customers consistently comment on the product's high quality, durability, and excellent fit. They appreciate the comprehensive nature of the kit, stating it contains everything needed for a complete install. Many also laud the superiority of the kit's quality compared to similar but more expensive brands. However, several reviews stress the need for more detailed instructions, suggesting improvements in this area could enhance the user experience. In terms of functionality and performance, customers find the product practical, easy to install, and reliable, particularly emphasizing its usability and the beneficial impact on their vehicles' drive quality. Despite minor issues, such as some adjustments required during installation, customers would buy the product again and recommend it over competitors.

4.6

38 reviews

5

22

4

15

3

1

2

0

1

0

Most Liked Positive Review

4.0

Great item...this is my 2nd one but rubb

This is the 2nd MSll kit that I have used and they work great mechanically, however.... an improvement that I recommend is the rubber bushings that are located at the ball joints do not fit as they should. Because they are flat where they meet the ball joint, they don't seat but just 'compress and "float" at that area......they don't stay centered and dirt gets into the ball joint. I've tried adding a picture but cannot?

Most Liked Negative Review

3.0

Quality parts but No instructions

Take note, Speedway does not provide any instructions on how to install this suspension kit, and their tech support acknowledges this issue. I wish I read other reviews that mentioned this before shelling out the amount of money for the kit. Yes, they have good tech support, but only during business hours. I'm doing my builds on evenings and weekends, so I had to rely on searching the internet for how-to help.

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I am always happy dealing with Speedway

5.0

a year ago

BB

Hampton VA.

Verified

This is going to be great on my 1948 Chevy coupe.

Would Recommend

Great customer service

5.0

2 years ago

T man

Unknown

Verified

Better instructions

Would Recommend

I have bought at least 8 of these kits only get them from S

5.0

3 years ago

Bob

New Albany Indiana

Verified

Streetrods

Would Recommend

Great product, parts all fit as they should

4.0

4 years ago

Sudsy

B.C. Canada

Verified

Well built and packaged good for shipping

Would Recommend

Awesome product

5.0

5 years ago

JW

Sask Canada

Verified

Looks good, fit perfect.

Would Recommend

Fits Great, Looks Great

4.0

5 years ago

JESSE

San Tan Valley, Az

I bought this kit to go with a Speedway Crossmember #91034446-DLX to be installed on my 1941 Chevy Coupe with the original top hat style frame. The crossmember kit came with instructions for mounting it and positioning on the frame but like countless other have stated the suspension kit doesn't have anything. The crossmember kit instruction did make some references drilling out the lower A arm mount on the cross member to 5/8" if using a tubular suspension and welding in the spacers but nothing further. I could see how someone who has never installed on of these kits or is not familiar with this type of suspension could be frustrated with the lack of directions. Overall this kit is great, the components fit well and the weld quality is better then other kits of the same price range. I suggest if your are thinking about purchasing this kit to go with your Mustang II crossmember regardless of the brand you talk to Speedway Tech Support before hand and they can guide you through some of the install process so your not surprised.

Would Recommend

Waiting for update on restocking status

4.0

5 years ago

38 special

Mid West Wisconsin

Verified

Front-end upgrade

No welding skills...no problem!

5.0

5 years ago

Rocket Man

Knoxville, Iowa

Verified

My first attempt at installing a IFS. A little grinding here and there, a few other tweaks and it's done. I went into this knowing that it would take some "massaging"...what part wouldn't after 70 years on my '50 Chevy 3100! It's square and level...looks great! What still amazes me is how well it did fit out of the box.

Would Recommend

I would buy again

5.0

6 years ago

Jim

Indian

Verified

GR8 kit but the clip that I bought to put it on had to be highly modified. Would not buy the Nova clip again.

Would Recommend

Yes I would buy again

5.0

6 years ago

Bill

Colorado

Verified

On 47 Chevy coupe

Would Recommend

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Showing 10 of 38 reviews

Questions & Answers

63 Questions10 Answers

what spring rate should i use on a 1951 chevy 3100. it will have a 400 chevy small block with turbo 350 tranny. no a/c.

by Josh

5 years ago

1 answer

will this mustang two kit work on a 1950 dodge pickup with a ford small block, if so what cross member does it require and motor mounts. are frame boxing plates available.

by mrgriss

6 years ago

1 answer

I'm looking to use this setup in 1953 Chevy 3100 truck. It will have a ls motor in it. Just wondering if possible to get a reference point on what coils to order

by Brandon

6 years ago

1 answer

I am considering this suspension package along with a crossmember #910-34424 for a 1948 Ford. With springs appropriate for the weight of the car, and the a-arms at an angle that the system is designed for, what would be the spindle height in relation to the bottom of the frame? I'm thinking standard spindles would get the car to a ride height of my liking and 2" dropped pindles might get it lower than I prefer.

by Lynn

7 years ago

1 answer

I am purchasing the chassis kit part #9161947 what cross member will I need for this kit ?I'm using an ls engine if that makes a difference

by Eddie

7 years ago

1 answer

Do you make the hubs with a 5 x 4.72 pattern?

by Gary

7 years ago

1 answer

I installed this on a 1951 Chevy pickup and it works fine. However, I believe a sway bar will improve handling. Which sway bar would work with this?

by Dan B

7 years ago

1 answer

what is the fitting size for the steering rack lines? What is the fitting size of the brake lines?

by Brandon

7 years ago

1 answer

I am planning to install the Speedway 91034425-DLX crossmember and 91034202 Mustang II IFS w/tubular Upper/Lower Control arms (stock height spindles and 91720350 springs) on my 1955 Ford F100 truck. The truck will have a ford 302 engine, power steering, and T5 transmission -- no AC. What drop from original stock can I expect to get with this setup?

by slider

7 years ago

1 answer

Would this be able to be installed on a 1963 Ford f100 unibody?

by Erik

7 years ago

1 answer

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