2005 Ski-Doo Racing Handbook, Page 388Get this manual
SECTION 082005 MX 550 AND 380 FC
A32CCAA
A23C07A
TYPICAL
1Ring supporting fan housing
Using press, drive the fan shaft no9 out
Remove circlip no11 then remaining bearingTo install, press one bearing in place then install circlip and shimsPress the other bearing from opposite side until it is flush with housingPress fan shaft from engine side of fan housingCheck for free rolling action