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#91031010
Mustang II 5 X 4 1/2 In. Brake Rotors & Bearing/Seal Kit
- Complete front rotor service kit for Mustang II disc brake applications
- Includes two brake rotors with a 5 on 4-1/2-inch wheel bolt pattern
- Bearing and seal kit provides components for both included rotors
$135.99
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$137.97
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Product Summary
Front Position, Round Rotor Shape, Vented Rotor Type
- Complete front rotor service kit for Mustang II disc brake applications
- Includes two brake rotors with a 5 on 4-1/2-inch wheel bolt pattern
- Bearing and seal kit provides components for both included rotors
- Ideal for street rods, hot rods, kit cars, and custom chassis builds
- Simplifies brake maintenance with matched replacement parts in one package
Comes as a Kit
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Key Specs
| Rotor Diameter | 9.25 Inch |
| Rotor Style | Plain Face |
| Rotor Material Type | Steel |
| Rotor Thickness | 0.88 |
| Bolt Pattern | 5 on 4.5" |
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Return PolicySpeedway Motors 91031010 Details
Speedway Motors 91031010 Details
Refresh your Mustang II front disc brake setup with this convenient replacement kit that includes two 5 on 4-1/2-inch brake rotors and a complete bearing and seal kit for both rotors. Designed to simplify maintenance and repairs, this package provides the essential components needed to restore smooth wheel operation and dependable braking performance.
The included rotors feature the popular Ford 5 on 4-1/2-inch bolt pattern commonly used in street rods, hot rods, and custom chassis applications utilizing Mustang II-style front suspensions. Matching bearings and seals help ensure proper rotor installation, reduce friction, and promote long service life for reliable performance on the street or at the track.
- Complete front rotor service kit for Mustang II disc brake applications
- Includes two brake rotors with a 5 on 4-1/2-inch wheel bolt pattern
- Bearing and seal kit provides components for both included rotors
- Ideal for street rods, hot rods, kit cars, and custom chassis builds
- Simplifies brake maintenance with matched replacement parts in one package
Speedway Motors 91031010 Specifications
Speedway Motors 91031010 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031010 |
| Brand | Speedway Motors |
| Rotor Diameter | 9.25 Inch |
| Rotor Style | Plain Face |
| Rotor Material Type | Steel |
| Rotor Thickness | 0.88 |
| Bolt Pattern | 5 on 4.5" |
| GENERAL | |
| Position | Front |
| Rotor Shape | Round |
| Rotor Type | Vented |
| Rotor Finish | Plain |
| Flange Diameter | 5.75 |
| Stud Length | 1.25 |
| Stud Diameter | 0.5 |
| Thread Pitch | 1/2"-20 |
| Weight | 13.95 |
| Sold in Quantity | Kit |
| Notes | Fits Mustang II/Pinto/Bobcat spindles. Use 912TLM12710 (outer cup) and 912TL68110 (inner cup), Hub flange is 5.740". OD of snout for wheel clearance is 2.50".Uses a .565 Knurl wheel stud. |
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Ratings & Reviews
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Fitment
Fitment
1974-1980 Ford Pinto
1975-1980 Mercury Bobcat

