As always...change the oil and filters on the hst with oem filters and super udt2 first. And make double sure that you get the filters in the right place. Then let us know
I changed the filter same thing I can use the dif lock and cannot stop the tires on the rear I drained the fluid strained it twice there is no metal in the oil it’s clean doesn’t smell burnt but I can still stop the tires with my foot