"MOUNTING SLOT WIDTH: 0.126 IN. MIN AND 0.250 IN. MAX; BORE LENGTH: 3.250 IN. NOMINAL; FORK WIDTH: 5.307 IN. MIN AND 5.317 IN. MAX; MATERIAL HARDNESS RATING: 28.0 MIN AND 63.0 MAX ROCKWELL C; SECURING HOLE SIZE: 1/2-20UNF OR NF-2B RH THD; DISTANCE FROM MOUNTING FACILITY CENTERLINE TO ARCH CENTERLINE: 4.875 IN. NOMINAL; ARCH INSIDE RADIUS: 2.625 IN. NOMINAL; FSC APPLICATION DATA: REVERSE SHIFTING, TRANSMISSION"