2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 240Get this manual
CONSTANT VELOCITY JOINTS AND DIFFERENTIAL GEAR
Job namePart name Defferential gear disassembly Gear motorO-ring Four-wheel drive switch Dust seal Circlip Coupling gearbearingcirclip Stopper boltshaft Shift fork sliding gear Shift fork 2WD4WD shift sleeve Differential gear case cover Shim (left) Differential gear assembly