snoiger01 said:Yep, absolutely normal, thanks to Hydrostatic transmission. Mine does it and at first scared the "you know what" out of me. But after 108 hours, it still whines and I'm almost used to it. One thing I have noticed is if you are in Hi and going slow, it whines louder. So I normally just stay in Lo since I don't use my tractor for speed laps around the pasture.