1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 316Get this manual
BIG FOOT
Shift Shaft
1Install shift shaft assembly into gear housing assembly
a-Shift Shaft Assembly b-Boot c-Retainer d-O-ring (outer) e-O-ring (inner) f-Washer g-Spring h-Washer i-Roll Pin j-Driver Pin k-Shift Cam