Input Clutch

Check the clearance of the input clutch. Measure the clearance "L" between snap ring and retaining plate using a thickness gauge. If it is out of specification, replace the entire direct clutch assembly.
Check for damage on the drive plate, driven plate and snap ring, and replace the entire input clutch assembly if damaged.
Specification: 0.7-1.1 mm (0.028 - 0.043 in)

Fig 1: Identifying Clearance Between Snap Ring And Retaining Plate
Courtesy of SUBARU OF AMERICA, INC.