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#91031020
$146.99
/kit
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$149.97
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Round Rotor Shape, 9.25 Inch Rotor Diameter, Cast Iron
Comes as a Kit
View Kit Components
| Rotor Diameter | 9.25 Inch |
| Rotor Style | Plain Face |
| Rotor Material Type | Cast Iron |
| Rotor Thickness | 0.88 |
| Bolt Pattern | 5 on 4.75" |
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855.313.9176Quick and Easy Returns
Return PolicyRestore your Mustang II front disc brake system with this complete rotor and bearing service package. Kit #91031010 includes two Mustang II brake rotors featuring the popular GM 5 on 4-3/4-inch wheel bolt pattern, along with a bearing and seal kit designed to service both rotors. By combining all the essential wear components in one package, this kit simplifies brake maintenance and front-end repairs.
Ideal for street rods, hot rods, muscle car builds, and custom chassis applications equipped with Mustang II-style front suspensions, this kit helps ensure smooth wheel rotation, proper bearing support, and dependable braking performance. The included bearings and seals are matched to the rotors for straightforward installation and long-lasting service.
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031020 |
| Brand | Speedway Motors |
| Rotor Diameter | 9.25 Inch |
| Rotor Style | Plain Face |
| Rotor Material Type | Cast Iron |
| Rotor Thickness | 0.88 |
| Bolt Pattern | 5 on 4.75" |
| GENERAL | |
| Rotor Shape | Round |
| Rotor Type | Vented |
| Rotor Finish | Plain |
| Flange Diameter | 5.74 |
| Stud Length | 0.93 |
| Stud Diameter | 0.44 |
| Thread Pitch | 7/16"-20 |
| Weight | 14.60 |
| Sold in Quantity | Kit |
| Notes | Fits Mustang II/Pinto/Bobcat spindles. Replacement bearing cups for OEM: 912TLM12710 (cup, outer), 912TL68110 (cup, inner), Knurl dia. 0.475". |
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1974-1978 Ford Mustang II
1974-1980 Ford Pinto
1975-1980 Mercury Bobcat
