dang!! i always hear everyone saying the S480's are cheap to just go get from a John Deer Dealer, but apparently not!! can you get your hands on a used one!! :thumbsup: and one of the morons that works for/with me, put a gallon and a half of straight hydrofluid in the 3720 E-Hyrdo at work today!! so i told the facilities director he might as well go get a trailer and load it up and take it to the dealer now before the system destroys itself! i straight up told all the supervisors and that moron yesterday that you can not put straight hyrdo fluid in those, they take the John Deer HighGuard/High Trans fluid or whatever its called, but hell ive had a hydro for 12 years now and what the heck do i know about maintaning them!! and he also tried to add hydro fluid to the front diff!! :bang: :badidea: so he just grabbed whatever kind of gear oil he could find, no care in the world what the weight was compared to what was already in the tractor!! and the funny thing was to top it all off.... neither the hyrdo or the front diff fluid levels were low!!