1993 Johnson Evinrude "ET" 60 thru 70 Service Manual, P/N 508284, Page 207Get this manual
Driveshaft Shimming Using Tool, PIN 393185 The driveshaft pinion is precisely meshed with the forward and reverse gears by using shim or shims between the driveshaft bearing housing and the thrust washerWhen installing new thrust bearing or washer, bearing housing, pinion or driveshaft, it is necessary to properly shim the assembly to restore factory clearanceGauge bars are precision made and should be handled carefullyThe length of each bar is stamped near the part numberThis dimension is 0.020 in(0,508 mm) shorter than the actual shimmed length of the driveshaftINotel Degrease pinion and driveshaft tapers prior to assembly1381 1Install the pinion onto the driveshaftTighten the pinion nut to torque of 40-45 ftIbs(54-60 Nm)381 2Assemble the driveshaft bearing housingthrust washer