Performance Upgrade: Upgrade your 1964-74 GM A/F/X body vehicle to an 11" disc brake with this kit, improving your vehicle's stopping performance significantly., Vehicle Compatibility: This brake kit fits 1964-72 Chevelle, Malibu, El Camino, 1967-69 Camaro, Firebird, and 1968-74 Nova, Ventura, Omega, Apollo vehicles. It must be used with stock style disc brake spindles and 15" or larger disc brake compatible wheels., Advanced Features: The brake kit comes with '69-'77 GM style calipers with a larger 2-3/4" bore and a 7/16"-20 inlet, ensuring efficient braking., Comprehensive Kit: The kit includes a new 11" vented iron rotor with the original 5 on 4-3/4" wheel bolt pattern and 7/16" studs, plus all necessary components such as caliper brackets, brake pads, backing plates, and rubber brake l
Stock Spindle 1964-74 GM A/F/X-Body 11 In. Front Disc Brake Kit Speedway Motors
Stock Spindle 1964-74 GM A/F/X-Body 11 In. Front Disc Brake Kit
Sku # 91031958
Mfr. Part # 91031958
Condition
New
Brand
Speedway Motors
Sold
Kit
Details
Info

Front disc brakes provide a significant improvement in braking performance versus the drum brakes your car came with. This complete front disc brake conversion kit fits 1964-72 GM A-Body, 1967-69 GM F-Body and 1968-74 X-Body using your stock disc brake spindles or our new replacement stock height disc brake spindles # 910-34900.

Kit includes 11" diameter vented brake rotor with 5 on 4-3/4" wheel bolt pattern, '69-'77 GM style calipers (7/16"-20 inlets), caliper brackets, brake pads, backing plates, rubber brake lines, and all necessary bearings, seals and hardware for an easy, complete installation onto factory disc brake spindles.

Note: Brake kit will not fit our 2" dropped spindles # 910-34906 or stock drum brake spindles. Must be used with stock style disc brake spindles and 15" diameter or larger wheels.

Application
This Part Fits

Brake kit fits:

  • 1964-72 Chevelle, Malibu, El Camino
  • 1967-69 Camaro, Firebird
  • 1968-74 Nova, Ventura, Omega, Apollo
If you are going to use this kit on an A-Body Oldsmobile (Cutlass, 442), Pontiac (GTO, Lemans) or Buick (Skylark, GS), it will not directly bolt on to the original spindles even with grinding the .610" off the stud at the top. The lower bolt holes in the original spindles are 7/16" and the bracket and bolts 1/2". The upper bolt holes on the original spindles are 1/2" with the brackets and bolts being 5/8". You will need to replace or modify the spindles.
Charts

(PDF)

Installation Tips
  1. Kit will not work with 14" wheels. Must be 15" wheels or larger.
  2. Kit must be used with original GM disc brake spindles or our new spindles # 910-34900, 910-35000. The difference between disc brake and drum brake spindles is at boss at the top where the bracket would mount. On drum brake spindles, this boss stuck out farther than disc brake spindles. Approximately .610" would have to be removed from this boss to work with these spindles.
  3. We recommend using brake booster/master cylinder combo 910-31978 with this front disc brake kit. Stock single reservoir 4-wheel drum brake master cylinders do not have the capacity to supply the proper amount of pressure for front disc brakes. Combo 910-31978 also includes an adjustable proportioning valve which is to be installed in the rear brake line circuit. The proportioning valve modulates pressure to the rear brakes which is necessary to prevent the rear brakes from locking up in an emergency stop situation.

Specs
Sold in Quantity
Kit
Bolt Pattern
5 on 4.75"
Finish
Natural
Rotor Diameter
11 Inch
Minimum Recommended Wheel Diameter
15 Inch
Caliper Finish
Natural
Rotor Shape
Round
Color
Natural
Notes
Includes rotors, backing plates, 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
.80
Stud Diameter
.44
Rotor Thickness
1.05
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
Rotor Material Type
Cast Iron
MFG. Part #
91031958
Caliper Pistons
One
Front Caliper Piston Quantity
1
Front Rotor Diameter
11 Inch
Reviews

All went together well no trouble at all!

Rated
Product Rating
by Fast machine on January 27, 2022

Summary: Great value

Yes, I recommend this product.

Yes I would recommend it to anybody doing disc conversion

Rated
Product Rating
by Dino on January 20, 2022

Summary: Quality parts, fair price.

Yes, I recommend this product.

Best value, complete kit on the market

Rated
Product Rating
by Alley on December 11, 2021

Summary: Can't say enough about this kit. Nice quality parts, perfect for my Chevelle Restoration.

Yes, I recommend this product.

Will buy again and tell friends !

Rated
Product Rating
by Old car guy on July 12, 2021

Summary: Everything works great!!!!

Yes, I recommend this product.

Yes

Rated
Product Rating
by Buddy on June 02, 2021

Summary: I put disk brakes on my 1966 El Camino, 396 4 speed car. I needed the disk brakes for the better stopping.Got some great advice for one of your techs, thanks!

Yes, I recommend this product.

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Tech Support
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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.