[Vehicle Fitment-1]: Compatible with Studebaker Challenger 1964, Commander 1964-1966, Cruiser 1962-1966, Daytona 1962-1966, Gran 1962-1964, Hawk 1960-1964, Lark 1959-1964, Silver Hawk 1959, Taxi 1959-1964, Wagonaire 1966 --- Heavy Duty Brakes; Front Left and Right Driver and Passenger Side [Vehicle Fitment-2]: Compatible with Studebaker Commander 1954-1958, Golden Hawk 1956-1958, Police Car 1955-1956, Power Hawk 1956, President 1955-1958, Silver Hawk 1957-1958 (V8 4.7L; V8 4.2L), Sky Hawk 1956 --- Front Left and Right Driver and Passenger Side [Reference Number]: W19236, 535585, 5463015 ---Please enter your vehicle information in the top left corner of the listing and check our Special Notes before ordering [Specifications]: ①Bleeder Screw Cap Included: No, ②Bleeder Screw Included: Yes, ③Brake Component Inlet Thread Size: 3/8-24 inch, ④Inside Diameter: 1.063 inch, ⑤Material: Cast Iron, ⑥Thread Diameter: 3/8. [Strict Tests]: Pressure test from 0.2MPa to 20MPa and high temperature test at 120℃ to ensure safe and reliable braking. A-premium Brake Wheel Cylinders are an ideal choice to replace your broken Brake Wheel Cylinders. All Brake Wheel Cylinders meet or exceed OEM specifications. Due to high manufacturing standard, it will come with one year quality guarantee.

Compatible with Studebaker Models:
1964-1964 Challenger Heavy Duty Brakes
1964-1966 Commander Heavy Duty Brakes
1954-1958 Commander
Compatible with 1962-1966 Cruiser Heavy Duty Brakes
1962-1966 Daytona Heavy Duty Brakes
1956-1958 Golden Hawk
1962-1964 Gran Heavy Duty Brakes
1960-1964 Hawk Heavy Duty Brakes
1959-1964 Lark Heavy Duty Brakes
1955-1956 Police Car
1956-1956 Power Hawk
1955-1958 President
1959-1959 Silver Hawk Heavy Duty Brakes
1957-1958 Silver Hawk V8 4.7L; V8 4.2L
1956-1956 Sky Hawk
1959-1964 Taxi Heavy Duty Brakes
1966-1966 Wagonaire Heavy Duty Brakes

Specifications:
Bleeder Screw Cap Included: No
Bleeder Screw Included: Yes
Brake Component Inlet Thread Size: 3/8-24 inch
Inside Diameter: 1.063 inch
Material: Cast Iron

OEM Number: W19236, 535585, 5463015
Location: Front Left and Right (Driver and Passenger Side)
Quantity Sold: A Set of Two Pieces
Note: It comes with 1.0625 inch of drum brake wheel cylinder bore