Dual Brake & Clutch Master Cylinder Rebuild kit for 1961-68 A, B, C series Pickup, Travelette & Travelall.Due to variances that we have found with these master cylinders it is best to check the bore size before ordering.We have found that factory units were 1" bore on the clutch and 1 1/8" bore on the brakes.Aftermarket units can be either 1" bore or 1 1/8" bore for both clutch and brake. Again it is best to check your master cylinder before ordering.Replaces IH part numbers 868443R91, 868444R91 or 868445R91