2005 Polaris Sportsman 400/500 Service Manual, Page 221Get this manual
TRANSMISSION 7Remove the compression spring (A)
Drain 5Remove the park lockout8Remove the detent star (B)Note how the detent star fits onto the splined shaft and the raised edge facing outward for reassembly9Slide the detent pawl (C) off of the shift shaft (D)D
C 6Remove the sector cover bolts and remove the sector coverRemoval can be aided by using your thumbs to press down on the shafts and pulling up the cover with your fingersRemove Sector Cover