1974 Ski-Doo Shop Manual, Page 222Get this manual
Bearing Puller (420977 415) (420977 417) (420977 415) Up to 1971250,292,300,335,340,371,399, 400,401For bearing 402 1005(420 977 417) Up to 1971669,640,641,775(420876035) (420876035) 370
Bearing Simulator (420876 150) (420876160) (420876380)
When adjusting crankshaft play(420876 150) 338,343,400,401 (420876 160) 640,641,775(420876380) 248,249, 294