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#91034100-4 3/4
Mustang II IFS w Stock Control Arms-Springs-Shocks-Spindles-5 on 4-3/4
- Brand new stock stamped steel Mustang II control arms feature upgraded polyurethane bushings to reduce flex and delfection
- Heat treated forged steel stock height spindle that retains stock factory geometry for proven Mustang II performance
- Larger 11" vented rotors have 5 on 4-1/2" bolt pattern and 1/2"-20 studs, increases rotational mass which adds improved stopping performance
$1,241.99
/kit
On Backorder
This part is Backordered. We currently do not have an estimate when this item will ship.
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Product Summary
74-78 Mustang II, 74-80 Pinto, 75-80 Bobcat, Natural
- Brand new stock stamped steel Mustang II control arms feature upgraded polyurethane bushings to reduce flex and delfection
- Heat treated forged steel stock height spindle that retains stock factory geometry for proven Mustang II performance
- Larger 11" vented rotors have 5 on 4-1/2" bolt pattern and 1/2"-20 studs, increases rotational mass which adds improved stopping performance
- Standard '78-'88 GM metric calipers have a 2-1/2" bore for easy serviceablility
- Your choice of manual or power rack and pinion steering, no additional cost
Comes as a Kit
View Kit Components
Key Specs
| MFG. Part # | 91034100-4 3/4 |
| Front Suspension Type | IFS |
| Suspension Height Adjustment | Stock Height |
| Control Arm Style | Stamped |
| Shock Type | Twin Tube |
Need To Know
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Return PolicySpeedway Motors 91034100-4 3/4 Details
Speedway Motors 91034100-4 3/4 Details
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)
Application
Charts
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
Guides & Documents
Speedway Motors 91034100-4 3/4 Specifications
Speedway Motors 91034100-4 3/4 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91034100-4 3/4 |
| Brand | Speedway Motors |
| Front Suspension Type | IFS |
| Suspension Height Adjustment | Stock Height |
| Control Arm Style | Stamped |
| Shock Type | Twin Tube |
| Spring Type | Coil Spring |
| Finish | Natural |
| Bolt Pattern | 5 on 4.75" |
| Rotor Diameter | 11 Inch |
| Spindle Style | Ford Stock |
| Dropped Spindles | No |
| Dropped Axle | No |
| Dropped Control Arms | No |
| Spindles Included | Yes |
| Brakes Included | Yes |
| Steering Included | Yes |
| Caliper Pistons | Single |
| Caliper Finish | Natural |
| Shock Adjustability | Non-Adjustable |
| Rotor Type | Solid/Vented |
| Welding Required | Yes |
Ratings & Reviews
4.6
5 Reviews
Customers have strongly endorsed our product for its high quality and ease of installation. The performance enhancements, particularly in ride handling and brake improvements, have been praised. Some customers were impressed by the value of the complete kit. A few noted the insufficient finishing on upper a-arms, but overall the product stood out for its upgrade in ride quality. Of note, customers would consider purchasing again, underscoring the product's top-notch features and practicality.
Ratings & Reviews
4.6
5 Reviews
Customers have strongly endorsed our product for its high quality and ease of installation. The performance enhancements, particularly in ride handling and brake improvements, have been praised. Some customers were impressed by the value of the complete kit. A few noted the insufficient finishing on upper a-arms, but overall the product stood out for its upgrade in ride quality. Of note, customers would consider purchasing again, underscoring the product's top-notch features and practicality.
4.6
5 reviews
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The products were of high quality
4.0
5 years ago
Dolly
Burlington Wisconsin 53105
Verified
I'm hoping the whole front end makes my street rod perfect
Would Recommend
Awesome product would buy again
5.0
8 years ago
Shawn
Waynesville Nc
Verified
Easy installation very good quality!!! A++++
Would Recommend
Great improvement in ride, but...
4.0
13 years ago
Stroker McGurk
Shasta Lake, CA
Verified
Replaced coil-overs on front of my 34 Chev with this kit. Handling and ride are greatly improved, bigger brakes, too. I was dissapointed that the finish on the upper a-arms flaked off easily, revealing more than surface rust underneath. Othervise, it was almost a bolt-in installation. PS: In was sent plain shocks, although it was advertised as including chromed shocks.
Would Recommend
would buy again
5.0
14 years ago
bob
Erwin, Tn.
Verified
good price plus I like the complete kit
mustang 2 suspension kit
5.0
16 years ago
crc
kelso,wa
[...]
Would Recommend
Showing 5 of 5 reviews
Fitment
Fitment
1974-1978 Ford Mustang II
1974-1980 Ford Pinto
1975-1980 Mercury Bobcat