Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 449Get this manual
LEFT HAND NON-RATCHETING
17Install thrust race on top of bearing adaptor18Apply Quicksilver Super Duty Gear Lubricant to small thrust bearing and install bearing on thrust race
aThrust RaceThrust Bearing 19Install thrust collar with its STEPPED SIDE DOWN toward the small thrust bearing20Pull up slightly on the propeller shaft to gain access to the groove on the shaft for the keepersInstall the keepers into the groove and lower the propeller shaft