Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 145Get this manual
2Press tapered bearing onto forward gear aMandrel (MUST Contact Inner Bearing Race Only) (91-38628)Inner Bearing Race MUST BE Tight Against Shoulder of GearWood
aMandrel (91-37321)Needle BearingSeal Edge
2Press bearing onto reverse gear until seated
Bearing Carrier Reassembly
IMPORTANT: Do not force bearing into carrier or damage may occur to bearing1Press needle bearing into bearing carrier until bearing edge is just below bearing carrier seal edge