MT-74 MANUAL TRANSMISSION — Component Parts (Extension Housing) 2. IF NECESSARY, REPLACE SPEEDOMETER DRIVEN GEAR OIL SEAL (a) Using SST, pull out the oil seal. SST 09921-00010 (b) Using SST, drive in a new oil seal into the sleeve. SST 09201-60011 Drive in depth: 25 mm (0.98 in.) INSPECTION AND REPLACEMENT OF REVERSE RESTRICT PIN 1. REMOVE REVERSE RESTRICT PIN (a) Using a torx socket wrench, remove the screw plug. (b) Using a pin punch and hammer, drive out the slotted spring pin. (c) Remove the reverse restrict pin.