Easily installs 11" rotors and '69-'77 mid-size GM single piston calipers to your '37-'48 Ford passenger car spindles or '37-'47 Ford pickup spindles, No machine work needed, Complete kits include new rotors and semi-metallic pads, new bearings and seals, new caliper bolts and calipers, along with caliper mounting brackets, bushings, hardware, instructions and brake hoses, Not for use with bolt-on steering arms, The kit mentioned has the common Chevy 5 on 4 ¾” bolt pattern and is also available with the Ford, 5 on 4 ½” bolt pattern under kit number 910-31940
Brake Kit: 1969-77 GM Caliper to Early Ford Spindles, Chevy B-P Speedway Motors
Brake Kit: 1969-77 GM Caliper to Early Ford Spindles, Chevy B-P
Sku # 91031941
Mfr. Part # 91031941
Condition
New
Brand
Speedway Motors
Sold
Kit
Details
Info

GM bolt pattern 5 on 4-3/4"

Easily installs 11" rotors and 1969-77 mid-size GM single piston calipers to your 1937-48 Ford passenger car spindles. No machine work needed.

Kit Includes:

  • New 11" brake rotor, 5 x 4-3/4"
  • Semi-metallic brake pads
  • GM Caliper slide bolts
  • Rebuilt 1969-77 calipers (7/16"-20 inlets)
  • 1973-77 GM brake brackets
  • 1973-77 hardware
  • New bearing and seal adapters
  • Seals
  • Inner bearing cups
  • Rubber Brake Lines
  • Inner bearing cones
  • Spacers
  • Outer bearing cones
  • Seals
  • Bolt kit for flat steering arm
  • Dust caps
  • Instructions

Not for use with bolt-on steering arms. The 11" rotor brake kits are great for Street Rods based on 1932-48 Fords. However these kits are much too large and heavy for a T-bucket or earlier roadster.

Item Details

11" Rotor and Pre-1978 GM Caliper to Early Ford Spindles

Charts

(pdf)

Installation Tips
This kit is designed to work on the 37-48 Ford spindles that have the cast on steering arms.  It will not function correctly when used on a spindle that uses bolt on steering arms and would require alteration.  The kit mentioned has the common Chevy 5 on 4 ¾” bolt pattern and is also available with the Ford, 5 on 4 ½” bolt pattern under kit number 910-31940.  Both kits use an inner bearing and seal adapter to increase the O.D. for the larger bearings and seals used in the kit.
Specs
Sold in Quantity
Kit
Bolt Pattern
5 on 4.75"
Finish
Natural
Rotor Diameter
11 Inch
Caliper Finish
Natural
Rotor Shape
Round
Color
Natural
Notes
Includes rotors, bearings and seals, calipers, pads, brake hoses, brake tabs, and caliper brackets.
Thread Pitch
7/16"-20
Hardware Included
Yes
Parking Brake Provision
No
Centerline of Holes
7.00
Stud Length
.94
Stud Diameter
.44
Rotor Thickness
1.00
Position
Front
Front Caliper Finish
Natural
Front Rotor Included
Yes
Front Caliper Included
Yes
Rear Rotor Included
No
Rear Caliper Included
No
Front Spindles Included
No
Master Cylinder Included
No
Brake Booster Included
No
Rotor Type
Vented
Front Suspension Type
Straight Axle
Rotor Material Type
Cast Iron
MFG. Part #
91031941
Caliper Pistons
One
Front Caliper Piston Quantity
1
Front Rotor Diameter
11 Inch
Reviews

I would definitely recommend and purchase again.

Rated
Product Rating
by Chris on February 11, 2019

Summary: Very easy to install. This is my second time for purchasing this kit for different projects and will order again if I need too.

Yes, I recommend this product.

i will keep buying from speedway fast shipping and good stuf

Rated
Product Rating
by oldblu on November 07, 2018

Summary: every thing fits as it should

Pros: nice stuff and fast shipping

Yes, I recommend this product.

Good value

Rated
Product Rating
by Lee on October 26, 2018

Summary: Decent budget upgrade

Yes, I recommend this product.

Great disc. brake kit, all quality parts and fantastic price

Rated
Product Rating
by Hayseed on July 02, 2018

Summary: All the parts fit as stated in the directions but you need to include in the instructions that you have to remove the small slider spacers in the calipers because the new Caliper bolts have a long sleeve that replaces them. Other than that GREAT KIT !!!

Yes, I recommend this product.

Nice product

Rated
Product Rating
by Bob on November 02, 2016

Summary: Very nice kit. All worked perfect. No modifications needed. I have suicide perch so hoses were too short for my application. Came with everything needed for install

Pros: Everything Fit With No Mo

Yes, I recommend this product.

Related Items / Suggested Parts
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.