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Street Race Truck More... The Toolbox
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$429.99
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake

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

GM 8.2" 10-Bolt BOP, GM 8.2" 10-Bolt Chevy 64-72, GM 8.5" 10-Bolt, GM 8.875" 12-Bolt Car

9 Reviews | 24 Answered Questions
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GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
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GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
GM 10 & 12 Bolt Bolt-On Rear Disc Brake Kit w/ E-Brake
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We estimate this item will ship on or before January 29th.
Part # 91031924
$429.99
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What's In The Kit
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  • If you don't want to spend an arm and a leg on a rear disc brake kit but want the ease of a bolt on system then this is the kit for you!
  • Fits GM 10 and 12 bolt rear ends in mid size cars. Will not fit full size cars, pickups, or 7.5" 10 bolt axles
  • Includes two bolt-on caliper brackets, two vented rotors, two new GM E- brake calipers and hardware
  • Rotors have both 5 on 4-1/2" and 5 on 4-3/4" to accommodate a variety of wheels
  • Fits axle with a maximum flange diameter of 6-1/4" OD and brake register size of 2.78" or smaller

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Details

Position:
Rear
Bolt Pattern:
Dual: 5 on 4.5" | 4.75"
Rotor Diameter:
11.25 Inch
Rotor Type:
Vented
Caliper Pistons:
One
Caliper Finish:
Natural
Color:
Natural
Parking Brake Provision:
Yes
MFG. Part #:
91031924
Rotor Thickness:
1.00"
Rotor Shape:
Round
Hardware Included:
Yes
Sold in Quantity:
Kit
Notes:
Includes rotors, calipers, pads, hardware, and caliper brackets.
Front Rotor Included:
No
Rear Rotor Included:
Yes
Front Caliper Included:
No
Rear caliper Included:
Yes
Front Spindles Included:
No
Master Cylinder Included:
No
Brake Booster Included:
No

Info

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.

Application

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

  • Chevelles
  • Camaros
  • Novas

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.

Notes

  • Rear disc brake conversion kit
  • Fits 10 & 12 Bolts with non-staggered shock configurations

Installation note:

The inside diameter of this rotor will accept an axle flange that has a diameter of 6-1/4" or smaller.  If your axle flange exceeds 6-1/4" in diameter, you will need machine your axle flange to decrease your axle flange diameter to fit this rotor as necessary.

When utilizing an aftermarket axle with disc brake conversion kits, it may be necessary to reduce the diameter of the axle flange to a diameter necessary to adequately fit inside the required Clearance I.D. that the brake hat/brake rotor will require.  (see above diagram for illustration)

Charts

91031924 Instructions (PDF)

Caliper Adjustment Instructions (PDF)

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

What's In The Kit

Each 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 Bolts
    Qty x 1
  • 1978-Up GM Metric Emergency Brake Caliper, RH, 5.45 Mount Bolts
    Qty x 1
  • Speedway Replacement 11-1/4 Inch Rear Brake Rotor
    Qty x 2
  • Caliper Brackets - GM 10 & 12 Bolt Bolt On
    Qty x 1
  • Caliper Bolt Kit - 910-31983
    Qty x 1

More Like This

Reviews

Q & A

Videos & Articles
  • After getting the control arms and drop spindles installed last time, we are dying to see what it looks like on the ground. Today we are working with the Speedway Deluxe Disc Brake Kit. Josh and Joe are on a roll!
  • Follow along as Speedway Tech Kevin W. updates the brakes on his Bel Air with a modern disc brake conversion kit.

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