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#91031943
Mustang II Complete 11 In Front Disc Brake Kit, 5 x 4-3/4 GM BP
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20 Questions
- Easily upgrade your Mustang II based suspension from the stock 9-1/4" rotors to this kit with 11" rotors with powerful GM single piston calipers
- No machining required making this a true bolt on upgrade
- Fits 1974-1978 Mustang II and 1974-1980 Pinto and Bobcat as well as hot rods with Mustang II suspension
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$395.99
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$415.85
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Product Summary
Front Position, 5 on 4.75" Bolt Pattern, Natural
- Easily upgrade your Mustang II based suspension from the stock 9-1/4" rotors to this kit with 11" rotors with powerful GM single piston calipers
- No machining required making this a true bolt on upgrade
- Fits 1974-1978 Mustang II and 1974-1980 Pinto and Bobcat as well as hot rods with Mustang II suspension
- Rotors have 5 on 4 3/4" bolt pattern to allow the use of GM bolt pattern wheels
- Detailed instructions are included to simplify installation
Comes as a Kit
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Key Specs
| Position | Front |
| Bolt Pattern | 5 on 4.75" |
| Rotor Diameter | 11 Inch |
| Rotor Type | Vented |
| Caliper Pistons | One |
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Speedway Motors 91031943 Details
Easily upgrade your Mustang II based suspension from the stock 9-1/4" rotors to 11" rotors with powerful single piston GM midsize floating calipers. Kit requires no machining. For use on 1974-1980 Pinto, Bobcat and Mustang II factory spindles.
GM bolt pattern 5 on 4-3/4" (increases track width 1" per side). Includes two 16" front brake hoses and 7/16"-20 banjo bolts with crush washers.
Charts
910-31943 Instructions (PDF)
Speedway Motors 91031943 Specifications
Speedway Motors 91031943 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031943 |
| Brand | Speedway Motors |
| Position | Front |
| Bolt Pattern | 5 on 4.75" |
| Rotor Diameter | 11 Inch |
| Rotor Type | Vented |
| Caliper Pistons | One |
| Caliper Finish | Natural |
| Color | Natural |
| Parking Brake Provision | No |
| Rotor Shape | Round |
| Hardware Included | Yes |
| Front Rotor Included | Yes |
| Front Rotor Diameter | 11 Inch |
| Front Caliper Included | Yes |
| Front Caliper Piston Quantity | 1 |
| Front Caliper Finish | Natural |
| Rear Caliper Included | No |
| Front Spindles Included | No |
| Master Cylinder Included | No |
| Brake Booster Included | No |
| Rear Rotor Included | No |
| GENERAL | |
| Rotor Thickness | 1.05" |
| Stud Diameter | .44" |
| Stud Length | .80" |
| Thread Pitch | 7/16"-20 |
| Centerline of Holes | 7.00" |
| Finish | Natural |
| Sold in Quantity | Kit |
| Notes | Includes rotors, bearings and seals, calipers, pads, brake hoses, brake tabs, and caliper brackets. |
| Rotor Material Type | Cast Iron |