Speedway Rear Disc Brake Conversion Kit, fits 1955-64 Chevy Full-Size
Complete Rear Disc Brake Conversion Kit Includes: 11" GM Rotors Multi Pattern. Fits 5x4.75" w/ 7/16 Studs & 5x4.5" w/ 1/2 Studs. Large GM Calipers w/ Self Adjusting E-Brake (1979 Cadillac El Dorado) D54 Pads Included. Caliper Brackets & Spacers. Bracket Hardware. Flex Hoses & Clips. Emergency Brake Cables. Tech Notes: Does not fit S-10 Chassis or truck frames. Maximum diameter of 6.11" to fit rotor hat. Rotor Center = 2-3/4" - Rotor Hat Section Inside Diameter = 6-1/8" You will need to modify your axles if they will not fit inside the rotor hat and you will need to modify the rotor if the center hole is too small for your axles. .050x45 Degree Chamfer. 2.786" max register axle.
Specifications
| Brand | Speedway Motors |
| Placement On Vehicle | Rear |
| Rotor Style | Plain |
| Type | Disc Brake Kits |
| Rotor Outside Diameter | 11 Inch |
| Manufacturer Part Number | 91664091 |
| Item Height | 14.200 |
| Item Length | 15.50 |
| California Prop 65 Warning | True |
| UPC | 635648180359 |
Complete Rear Disc Brake Conversion Kit Includes: 11″ GM Rotors Multi Pattern. Fits 5×4.75″ w/ 7/16 Studs & 5×4.5″ w/ 1/2 Studs. Large GM Calipers w/ Self Adjusting E-Brake (1979 Cadillac El Dorado) D54 Pads Included. Caliper Brackets & Spacers. Bracket Hardware. Flex Hoses & Clips. Emergency Brake Cables. Tech Notes: Does not fit S-10 Chassis or truck frames. Maximum diameter of 6.11″ to fit rotor hat. Rotor Center = 2-3/4″ – Rotor Hat Section Inside Diameter = 6-1/8″ You will need to modify your axles if they will not fit inside the rotor hat and you will need to modify the rotor if the center hole is too small for your axles. .050×45 Degree Chamfer. 2.786″ max register axle.