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Basic Weld-On Rear Disc Brake Kit for 1978-88 GM Caliper, 3 In BS

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Specs
Sold in Quantity:
Kit
Finish:
Natural
Rotor Construction:
Vented
Rotor Diameter:
11.75
Rotor Hat Bolt Pattern:
8 x 7.00"
Material Type:
Cast Iron
Bolt Pattern:
Multi: 5 on 5"/4.75"/4.50"
Rotor Location:
Rear
Rotor Shape:
Round
Thread Pitch:
7/16"-20
Hardware Included:
Yes
Drilled:
No
Slotted:
No
Rotor Thickness:
.81
Notes
Includes rotors, rotor hats, caliper brackets, hardware, and instruction sheets.
Basic Weld-On Rear Disc Brake Kit for 1978-88 GM Caliper, 3 In BS
VIDEO
Basic Weld-On Rear Disc Brake Kit for 1978-88 GM Caliper, 3 In BS

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Please note the following about this product:

  • This item is sold as a kit.

Details

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Q & A (6)

What's in the Box

Info

Replace those old drum brakes with modern rear disc brakes. Included steel caliper brackets weld to your 3" tube rearend, making this a universal kit for a variety of applications. Basic kit includes caliper brackets for '78-'88 GM metric car front calipers, Pro-lite vented .810" x 11-3/4" iron rotors, steel brake hats (3" backspace, 6-1/4" I.D.), and rotor bolts.

Hat fits 5 on 4-1/2", 5 on 4-3/4" and 5 on 5" bolt circles.

910-31925 Instructions (PDF)

Instructions (PDF)

Notes

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.

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