GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Build Your KitYou're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
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.
910-31924 Instructions (PDF)
For more details and installation photos, see this article in Super Chevy magazine.
This kit will fit 10 & 12 Bolt rear ends from:
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.
What's In The KitEach kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
1978-Up GM Metric Emergency Brake Caliper, LH, 5.45 Mount BoltsPart # 91031046-LQty x 1
1978-Up GM Metric Emergency Brake Caliper, RH, 5.45 Mount BoltsPart # 91031046-RQty x 1
Speedway Replacement 11-1/4 Inch Rear Brake RotorPart # 91031039Qty x 2
Caliper Brackets - GM 10 & 12 Bolt Bolt OnPart # 91031983Qty x 1
Caliper Bolt Kit - 910-31983Part # 91031983-2Qty x 1
More Like This
Ford 9 Inch Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit
AFCO 7250-0100 Ford 9 Inch Axle Brake Kit
Speedway Ford 9 Inch Rearend Bolt-On Rear Disc Brake Kit
AFCO 7250-0110 GM 10 & 12 Bolt Axle Brake Kit
Wilwood Bolt-On Front / Rear Brake Kit, Ford Spindles
Total Performance Wilwood Bolt-On Front/Rear Brake Kit, Chevy Spindles
Speedway 8 & 9 Inch Ford Disc Brake Conversion Kit w/ E-Brake
Speedway 1964-66 Mustang Front Disc Brake Conversion Kit
Speedway 1967-69 Ford Mustang Front Disc Brake Conversion Kit
Q & A
Learn how to install an adjustable proportioning valve block.