GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake

If you dont want to spend an arm and a leg on a rear disc brake kit and still have to weld the bracket on, weve got you covered. This complete kit includes two bolt-on caliper brackets, two 11-1/4" vented rotors, two GM emergency brake style calipers, brake pads and hardware.

• Rotors have both 5 on 4-1/2" and 5 on 4-3/4" bolt circles
• Fits axle with a maximum flange diameter of 6-1/4" O.D.
• 2.780" rotor center hole
• Includes emergency brake calipers
• Does not fit all 10 & 12 bolt axles - check Applications for details
• Requires 15" and larger wheels as 14" and smaller wheels will not clear application.  

For more details and installation photos, see this article in Super Chevy magazine.

This kit will fit 10 & 12 Bolt (non-staggered shock) rear ends from:

• 1964-77 Buick Skylark
• 1964-73 Chevy Chevelle
• 1964-79 Chevy Nova/Chevy II
• 1964-77 Chevy El Camino
• 1967 Camaro
• 1970-77 Chevy Monte Carlo
• 1964-71 Oldsmobile 442
• 1964-77 Oldsmobile Cutlass
• 1964-73 Pontiac GTO
• 1964-77 Pontiac LeMans
• 1964-70 Pontiac Tempest

The housing flange must have:

• 3-1/8" center-to-center distance for the top two bolt holes
• 2-11/16" center-to-center distance for the bottom two bolt holes
• 2-7/16" distance from the center of the top bolt to the center of the bottom bolt
• Axle Flange Identification Chart (GIF)

This kit requires 15" and larger wheels.

Note: This disc brake kit does NOT fit all 10 & 12 bolt rear axles. It does NOT fit full size car (Biscayne, Bel Air, Impala) or pickup rear axles.   Kit does not clear 14" and smaller wheels.  This kit does NOT work with staggered shock rear axle configurations as both calipers are positioned to the rear of the housing with this conversion brake kit.

91031924 Instructions (PDF)

Caliper Adjustment Instructions (PDF)