What type fluid is used in front differential on kubota b7100 hst?

The front differential on a Kubota B7100 HST typically uses a gear oil, specifically a 80W-90 weight gear oil or an equivalent API GL-4 or GL-5 rated fluid. It's important to consult the owner's manual for the specific recommendations, as using the correct fluid is essential for optimal performance and longevity of the differential.