2005 Kawasaki KAF400 Mule 600 and Mule 610 4x4 Service Manual, Page 43Get this manual
2-24 PERIODIC MAINTENANCE Periodic Maintenance Procedures
the has completely drained out, install After with oilnew aluminum gasket, and tighten it.the drain plug case up Fill the gearspecified to the bottom [A] of filler opening [B] with the oil belowFront Final Gear Case Oil Type: API "GL-5 or GL-6" hypoid gear oil for LSD (Limited Slip Differential gears) Viscosity: Capacity: Oil Level SAE90 (GL-6), or SAE140 (GL-5) 0.2 (0.2 US qt) Filler opening level TorqueOil Drain Plug: 20 Nm (2.0 kgfm, 14 ftlb)
"GL-5 or GL-6" indicate quality and additive rating
Be sure the O-ring [C] is in place, and tighten the filler capTorqueOil Filler Cap: 29 Nm (3.0 kgfm, 22 ftlb)