Weld-On Rear Disc Brake Kit, 1969-77 GM Caliper, 3 Inch Backspace
Universal Fit, Rear Position, Multi: 5 on 4.5" | 4.75" | 5" Bolt Pattern, Vented Rotor Type
- Replace those old drum rear brakes with modern disc brakes using this universal weld on disc brake kit
- Features '69-'77 GM calipers with massive 2.75" piston size which provide incredible stopping power
- 11.75" OD vented rotors which are .81" thick ensure cool operation for fade free braking performance
- This complete kit includes calipers, rotors, brake pads, brake hats, caliper slide bolts, and caliper brackets
- The 3" backspace steel brake hat accommodates 5 on 4-1/2, 4-3/4", and 5 on 5" bolt circles
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. Steel rotor hat 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.
Hat fits 5 lug hubs with 4-1/2", 4-3/4", or 5" bolt circle.
Installation note: Due to a wide variation in daimeters of axle flanges and center hubs from manufacturers, it may be necessary to turn these diameters down to the proper dimensions.
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.
910-31936 Instructions (PDF)
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
What's In The Kit
Pro-Lite Vented Brake Rotor, 11.75 x .81 InchPart # 91031906Qty x 2
Speedway Stamped Steel Disc Brake Rotor Hat, 3 Inch OffsetPart # 91031904Qty x 2
Rotor Hat Bolt Set, 1/8 Inch ThickPart # 8352500071-1/8Qty x 2
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 GM Brake Caliper Slider Slide BoltPart # 8352300542Qty x 4
Speedway 156 1969-77 GM Mid-Size Brake PadsPart # 9191563Qty x 2
Weld-On 1969-77 GM Mid-size Caliper BracketPart # 91641005Qty x 2
Instruct Sheet-Brake KitPart # 910319INSTQty x 1
Q & A
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