Supply of 1 Ferrule. Brake Head -1.798 O.D. X 1.375 Ferrule. Brake Head -1.798 O.D. X 1.375 I.D X 1.100 Inches As Per Emd Part No 40022316. 2 Spacer.. Steel Of Size 3-1/2 O.D. X 9/16 Spacer.. Steel Of Size 3-1/2 O.D. X 9/16 I.D. X 1/4 Inch Thick To Emd Part No: 40080071 And Blw Part No: 17084398.