2003 2005 YFM45FAR, YFM450FAR Kodiak OEM Service Manual, Page 111Get this manual
CHANGING THE DIFFERENTIAL GEAR OILCHECKING THE CONSTANT VELOCITY JOINT DUST BOOT
4.Drain: Differential gear oil 5.Install: 10 Nm (1.0 kg, 7.2 ft lb) Drain plug NOTE: Check the gasket (drain plug)If it is damaged, replace it with new oneT
6.Fill: Differential gear case Periodic oil change: 0.23 (0.20 Imp qt, 0.24 US qt) Total amount: 0.28 (0.25 Imp qt, 0.30 US qt) Recommended oil: SAE 80 API "GL-4" Hypoid gear oil NOTE: If gear oil is filled to the brim of the oil filler hole, oil may start leaking from the differential gear case breather hoseTherefore, check the quantity of the oil, not its levelCAUTION: