When Installing New Sealing Rings onto the Low Clutch Housing

When installing new sealing rings onto the low clutch housing, the entire housing must be replaced if the amount of clearance between the sealing ring and the groove is more than:

A) 0.1 inch (2.54 mm) .
B) 0.1 mm (0.004 in) .
C) 0.01 inch (0.25 mm) .
D) 0.01 mm (0.0004 in) .