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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

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Please note the following about this product:

  • This item is sold as a kit.

Details

Reviews (0)

Q & A (3)

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)

Customer Reviews

This product has no reviews.

Product Q&A

3 questions : 3 answers

1 answers

will this kit work with the standard GM D52 brake calipers and 15x8 truck rallies?

Bigblockc10
Chattanooga, TN, USA
April 01, 2015

will this kit work with the standard GM D52 brake calipers and 15x8 truck rallies?

Answers

April 01, 2015
EricM
No the brackets in this kit will not fit D52 GM calipers. You need kit part number 91031920 for that caliper. It should fit fine with 15x8 Rally wheels from a '78 pickup.
1 answers

The discription says it will fit a 6.25 axle flange, and the directions say 5.75 max. which would be correct? My flange is 6.20 on a set of Strange dana 60 axles.

Yogi
Florida
September 24, 2015

The discription says it will fit a 6.25 axle flange, and the directions say 5.75 max. which would be correct? My flange is 6.20 on a set of Strange dana 60 axles.

Answers

September 25, 2015
Eric
Expert
The maximum axle flange diameter that the brake hats will accept is 5 3/4". Sorry for the discrepancy.
1 answers

I have a 6 inch axle dia what rotor hat will fit over it.

scotty
barrington nh
April 24, 2016

I have a 6 inch axle dia what rotor hat will fit over it.

Answers

April 25, 2016
Eric
Expert
These hats accept a maximum axle flange diameter of 5.83". You will need to machine your axles down to that size or smaller in order to use brake hats. Sorry we do not offer a hat that accepts larger axle flanges.
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