American Made Kelsey Hayes 4-Piston Front Drum to Disc Brake Conversion Kit W/Rotors. A121-1
American Made Kelsey Hayes 4-Piston Front Drum to Disc Brake Conversion Kit W/Rotors. A121-1 is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
Shipping expectations
Shipping expectations
Availability and processing time can vary by manufacturer. Available shipping choices and charges appear at checkout. Tracking is emailed after shipment. Oversized, special-order and supplier-shipped items can require additional processing time.
Returns and cancellations
Returns and cancellations
Please review eligibility before purchase. Installed, used, electronic, custom, special-order and clearance items may have return restrictions. Contact us promptly if you need to change or cancel an order.
What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
American Made Kelsey Hayes 4-Piston Front Drum to Disc Brake Conversion Kit W/Rotors. A121-1 is backordered and will ship as soon as it is back in stock.
Buy with confidence
Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
FRONT POWER DISC BRAKE CONVERSION KIT FOR AUTOMATIC TRANSMISSION CARS 1967-1969 MUSTANG AND COUGAR, ORIGINAL KELSEY HAYES DESIGN
This made in the USA kit contains all the parts you need to convert your ’67-69 Mustang or Cougar with automatic transmission from drum to power disc brakes. Kelsey Hayes style Shelby / GT calipers, brackets, and splash shields are made from the original FORD prints and 100% made in the USA. Manufactured from quality materials, this SSBC kit is designed to ensure high-performance and dependability. Please consult the wheel fitment diagram to confirm clearances and contact our customer service/technical support at 1-716-775-6700 for assistance.
KIT FEATURES
- Bolts to V8 or 6-cylinder drum brake spindles.
- Kelsey Hayes original GT style 4-piston cast iron calipers
- Stainless steel pistons, transfer tubes, bleeders and pad retaining clips
- Contains square cut pressure seal, and factory style dust boot
- Calipers come with a black E-coat finish
- New dual bowl cast iron master cylinder
- 7" Single Diaphragm Booster and new power brake pedal
- Two 11.25” diameter heavy duty vented rotors
- Semi-metallic brake pads- D11
- Adjustable proportioning valve
- Includes Mounting Hardware, seals, DOT Flex Hoses, splash shields, and backing plates
- Simple instructions for bolt-on installation
Optional rotor upgrades (dimple drilled, slotted and plated) available
Note: for automatic transmission cars only
Note: 6 cylinder spindles came from factory with 4 lug drums. This kit will convert to a 5 x 4.5" bolt pattern.
Product Description:
The A121-1 Front Disc Brake Conversion Kit by Stainless Steel Brakes includes everything you need to upgrade your drum brakes to the reliability and performance of a modern disc brake system.
This kit will work on Mustang, Cougar, Falcon, Fairlane, or Torino with V8 engine and automatic transmission. It can be used with most 15” wheels as well as with the factory-styled 14” x 7” steel wheels, and will install directly on a V8 spindle with no other modifications needed! Please consult the wheel fitment diagram to confirm clearances. For additional information, please contact SSBC customer service.
Kelsey Hayes style Shelby / GT calipers, brackets, and splash shields are made from the original FORD prints and 100% MADE IN USA.
The kit includes premium-quality E-coat calipers for ultimate corrosion resistance and stainless steel pistons. It includes a dual reservoir master cylinder and a single diaphragm booster. Also included is an adjustable proportioning valve which is the best way to adjust front and rear brake bias for maximum stopping power. You'll get dependable performance with a factory look.
SSBC-USA designs and manufactures high-quality brake components and systems for a wide range of vehicles. Kits come complete and are designed for simple bolt-on installation. The Mustang aftermarket products provide improved stopping power while maintaining the original look and appearance.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product features
Use this section to highlight specific product features to your customers.
Product comparison grid
Add content here to explain a bit about the range of products on offer and which ones may be most suitable for your customers.



