1990 Johnson Evinrude "ES" 40 thru 55 Service Repair Manual, P/N 507872, Page 201Get this manual
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1421 2 Slide the Collar PIN 334985 onto the driveshaft with large end touching the bearing housing42 13 Insert the assembled driveshaft into the tool base1431 4 Tighten preload screw against the drive