9" Ford Axle Bearing Flange Bolt Pattern Identification Chart

How To Measure Rear Axle Hub Flange & Register Dimensions

JEGS 555-631026 Ford 9 in. Rear Disc Brake Conversion Kit Features:

• Easy bolt-on solution to upgrade from drum to disc brakes
• Fits most 1968-1977 Ford 9-inch passenger car rear axles
• For non-staggered shock applications with both shocks forward or behind the rear axle housing
• Includes 11-inch plain rotors, rubber hoses, loaded calipers, and hardware
• The minimum required wheel diameter is 15”

This JEGS Standard Rear Axle Disc Brake Conversion Kit without Parking Brake is an easy bolt-on solution for upgrading your 1968-77 Ford Passenger Car 9 in. rear-end to disc brake performance

JEGS 555-631026 Ford 9 in. Rear Disc Brake Conversion Kit Notes:

• For applications with both Shocks behind the Rear Axle Housing
• The installation of disc brakes will require the use of 15 in. wheels. Any attempt to install disc brake with a 14 in. wheel will be the customer’s responsibility
• This kit Requires a disc/disc proportioning valve. JEGS recommends 555-63025.
• JEGS recommends a 1.125 in. large bore master cylinder like 555-631403 when adding disc brakes. 
• Maximum axle flange diameter of 6.11 in. with 2.786 in. max register to fit rotor hat. 
• Fits: Small bearing 9 in. (3 3/8 in. x 2 in. Flange), Early Big bearing 9 in. (3 1/2 in. x 2 3/8 in. Flange) and Late Big bearing 9 in. (3 9/16 in. x 2 in. Flange)

JEGS 555-631026 Ford 9 in. Rear Disc Brake Conversion Kit Includes:

• (2) BR9A Bracket & (2) FL9A (1 Bag)
• (2) BR9B Bracket & (2) FL9B (1 Bag)
• (2) BR9C Bracket & (2) FL9C (1 Bag)
• (2) Caliper Brackets
• (1 Bag) Hardware Kit
• (2) Brake Hoses
• (2) Brake Hose Mounts & (2) Clips (1 Bag)
• (1 Box) Left/Driver Side & Right/Passenger Side Brake Calipers with Pads
• (2) Standard Rotors - Drilled for 5 x 4.50 in. (1/2 in. Stud) & 5 x 4.75 in. (7/16 in. Stud)

FAQ

Is it worth it to convert rear drum brakes to disc brakes?

• Converting rear drum brakes to disc brakes, like the JEGS 631026 kit, enhances stopping power, reduces fade, and improves overall braking performance, making it a worthwhile upgrade for many vehicles.

Do you need a new master cylinder for a disc brake conversion?

• While not always necessary, upgrading to a disc brake master cylinder, compatible with the JEGS 631026 disc brake conversion kit, is recommended to optimize braking efficiency.

How much does a disc brake conversion cost?

• The cost varies, but the JEGS 631026 disc brake conversion kit provides an affordable solution for reliable and efficient rear disc brake conversion, offering great value for the investment.

What is needed for a disc brake conversion?

• The JEGS 631026 disc brake conversion kit includes all essential components such as rotors, calipers, pads, brackets, and hardware, providing a comprehensive solution for a successful rear disc brake conversion.