2007 Arctic Cat Four-Stroke Factory Service Manual, Page 333Get this manual
17Slide the reverse gear onto the driveshaft extension; then position the spring into the reverse gear and secure with heavy washer and cap screw (coated with green Loctite #609)Tighten to specifications AF432
! NOTE: If the PTO-side driven shaft bearing was removed to make the sprocket installation easier, install the bearing and flange plateLock the bearing collar by driving it in the direction of rotation to lock the collar to the bearing and shaftTighten the collar set screw
15Place the rubber alignment pin into position in the idler sprocket; then slide the outer idler gear on the shaftInstall shim washer on the shaft
18Install the chain tensioner arm, apply blue Loctite #243 to the stud threads, and tighten the shoulder nut to specifications19Remove the set screw from the chain adjuster housing and install the adjuster plug20Check that the chain-case O-ring seal is positioned correctly on the housing21Position the shift fork behind the large thrust washer and bearing on the reverse gear; then position the cover on the housing