Weld-On Rear Disc Brake Kit, 1969-77 GM Caliper, 1.96 Inch Backspace
Universal Fit, Rear Position, Multi: 5 on 5" | 4.75" | 4.50" Bolt Pattern, Vented Rotor Type
- 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.
Replace those old drum brakes with modern rear disc brakes. Mounts .81" x 11-3/4" Pro-lite vented iron rotors and calipers to 3" tube rear end. Complete with rotors, hats, calipers (7/16"-20 inlets), brackets, brake pads, caliper brackets and slider bolts.
Wilwood aluminum hats fits 5 lug hubs with 4-1/2", 4-3/4", or 5" bolt circle.
910-31935 Instructions (PDF)
Brake pad and caliper installation note:
This bracket features a 90 degree bend in the bracket at the slider bolt threaded area for additional caliper support. This part of the bracket may or may not interfere with the corner of the inner brake pad backing plate due to differences in brake pad manufacturers. When this occurs, it will be necessary to simply remove a minimal amount of backing plate material at each corner of the inner brake pad to allow for the necessary clearance between the bracket and brake pad when the caliper and pads are fully installed.
- Caliper Brackets (2)
- Weld onto a 3" axle tube
- Rotors (2)
- GM-style .81" x 11-3/4", 8 on 7" bolt pattern
- Straight vanes, 8 lbs. each
- Rotor Hats (2)
- Machined aluminum, 1.96" offset
- 3.06" center hole, 6-3/8 I.D., 1/2" stud holes, 1.6 lbs.
- Rotor Bolt and Nut Kit (2)
- Caliper Slider Bolts (4)
- Brake Pads (2 sets)
- Street compound, little metallic, long rotor and pad life
- Calipers - 1969-77 GM Midsize (L & R)
- 7/16"-20 inlet
- Cast iron body, 2.8" single piston
What's In The Kit
IMCA 1969-77 Midsize Standard Stock GM Caliper, LHPart # 91031035-LQty x 1
IMCA 1969-77 Midsize Standard Stock GM Caliper, RHPart # 91031035-RQty x 1
Speedway Pro-Lite Vented Brake Rotor, 11.75 x .81 InchPart # 91031906Qty x 2
Wilwood 170-0208 Rear Brake Drag Hat, 1.96 Inch Offset, Multi-5 LugPart # 8351700208Qty x 2
Rotor Bolt Set - 5/16 x 3/4, Bolt OnlyPart # 8352300233Qty x 2
Weld-On 1969-77 GM Mid-size Caliper BracketPart # 91641005Qty x 2
Speedway GM Brake Caliper Slider Slide BoltPart # 8352300542Qty x 4
Speedway 156 1969-77 GM Mid-Size Brake PadsPart # 9191563Qty x 2
Instruct Sheet-Brake KitPart # 910319INSTQty x 1
More Like This
Weld-On Rear Disc Brake Kit, 1969-77 GM Caliper, 3 Inch Backspace
Basic Weld-On Rear Disc Brake Kit for 1969-77 GM Caliper, 3 In BS
Brake Kit: 1969-77 GM Caliper to Early Ford Spindles, Chevy B-P
Front Disc Brake Kit GM Metric/Mustang II to 1949-54 Chevy, 5 on 4-1/2
Weld-On Rear Disc Brake Kit, 1978-88 GM Caliper, 1.59 Inch Backspace
Disc Brake Kit for Total Performance Spindles, 5 x 4-1/2
Basic Weld-On Rear Disc Brake Kit for 1978-88 GM Caliper, 1.59 In BS
Mustang II Disc Brake Kit for Early Chevy Spindles, 5 on 4-1/2 Inch
Front Disc Brake Kit, GM Mid-size to 1949-54 Chevy Spindle, 5 on 4-3/4
Mustang II Brake Kits for Early Chevy Spindles, GM 4.75 Pattern
Q & A
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!
Tim talks about the options we have for early Ford drum brakes.
We get a lot of questions about brake kits so Tim gives a brief overview of disc brake setups.
Early Ford Bolt-on Brake Conversion
Project Chevelle upgrades the 4 drum brakes single master cylinder that was an unfortunate set of boxes checked on this Chevelle’s order sheet.
In this Tech Tip, John confirms a customer question regarding the need for a proportioning valve on his ’55 F100 brake build.
Steve replaces the factory GM 8.5" 10-bolt rear end on his '76 Chevrolet Laguna S3 with a GM 10 & 12 bolt bolt-on rear disc brake kit.