2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 316Get this manual
FRONT DRIVING MECHANISM (FMFE model) DIFFERENTIAL CASE ASSEMBLY NOTEWhen the gear setbearing, differential housing andl or gear case has been replaced, check the tooth contact pattern check (page 16-17) and gear backlash (page 16-15)Keep dust and dIrt
ou of me case 8nd cover
Clean the mating surface of the gear case and cover, being careful not to damage them Blow compressed air through he breathe hole in the case cover