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#91031958
Stock Spindle 1964-74 GM A/F/X-Body 11 In. Front Disc Brake Kit
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- Upgrade your 1964-74 GM A/F/X body to an 11" disc brake for improved stopping performance
- Must be used with stock style disc brake spindles and 15" or larger disc brake compatible wheels
- Calipers feature larger 2-3/4" bore from 1969-77 GM midsize cars with 7/16"-20 inlet
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Product Summary
Front Position, 5 on 4.75" Bolt Pattern, Natural
- Upgrade your 1964-74 GM A/F/X body to an 11" disc brake for improved stopping performance
- Must be used with stock style disc brake spindles and 15" or larger disc brake compatible wheels
- Calipers feature larger 2-3/4" bore from 1969-77 GM midsize cars with 7/16"-20 inlet
- New 11" vented iron rotor with original 5 on 4-3/4" wheel bolt pattern and 7/16" studs
- Fits 1964-72 Chevelle, Malibu, ElCamino
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 91031958 Details
Front disc brakes provide a significant improvement in braking performance versus the drum brakes your car came with. This complete front disc brake conversion kit fits 1964-72 GM A-Body, 1967-69 GM F-Body and 1968-74 X-Body using your stock disc brake spindles or our new replacement stock height disc brake spindles # 910-34900.
Kit includes 11" diameter vented brake rotor with 5 on 4-3/4" wheel bolt pattern, '69-'77 GM style calipers (7/16"-20 inlets), caliper brackets, brake pads, backing plates, rubber brake lines, and all necessary bearings, seals and hardware for an easy, complete installation onto factory disc brake spindles.
Note: Brake kit will not fit our 2" dropped spindles # 910-34906 or stock drum brake spindles. Must be used with stock style disc brake spindles and 15" diameter or larger wheels.
Application
Brake kit fits:
- 1964-72 Chevelle, Malibu, El Camino
- 1967-69 Camaro, Firebird
- 1968-74 Nova, Ventura, Omega, Apollo
Charts
910-31958 Instructions (PDF)
Guides & Documents
Speedway Motors 91031958 Specifications
Speedway Motors 91031958 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031958 |
| 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 |
| Minimum Recommended Wheel Diameter | 15 Inch |
| 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, backing plates, bearings and seals, calipers, pads, brake hoses, brake tabs, and caliper brackets. |
| Rotor Material Type | Cast Iron |