Description:

[Vehicle Fitment]: Compatible with Chevrolet Truck 1947-1952; Compatible with GMC FC280 1947-1950; FC300 1947-1950; FCS300 1947-1950; FF350 1947-1950; Truck 1950 --- with Drum Brakes and 1.25 Inches Bore. [Reference Number]: The A-Premium brake master cylinder's reference number: 5450929, 5450930, 5454382, M9220. [Function]: Pressure tested to ensure safe and reliable braking; Excellent materials and precision manufacturing to give sufficient pressure and extend lifespan.. [Specification]: Material: Aluminum; Master Cylinder Bore Diameter: 1.25 inch; Rearward Outlet Size: 7/16-24; Secondary Outlet Thread Diameter: 7/16-24.