2007 Arctic Cat Four-Stroke Factory Service Manual, Page 332Get this manual
6Slide the MAG-side bearing onto the driveshaft (inner race flange must be positioned toward drive chain); then install the O-ring and flange plateSecure with three carriage bolts and lock nutsTighten to specifications! NOTE: Prior to installation, lubricate the O-ring with Low-Temp Snowmobile Grease (pn 0636593) 7Install the brake hub key into the driven shaft keyway; then slide the driven shaft into position through the PTO-side bearing bracketPosition the brake disc between the brake pads; then slide the driven shaft through the brake disc until fully seated8Install the PTO-side bearing with collar and flange plates on the driven shaft; do not tighten the collar at this timeSecure the PTO-side bearing and flange plates with two carriage bolts and lock nutsTighten to specifications9On the MAG-side driven shaft, install the bearing, O-ring, and flange plateSecure with three lock nutsTighten to specifications! NOTE: Prior to installation, lubricate the O-ring with Low-Temp Snowmobile Grease (pn 0636593)