Ok here's the story,bought a 93 country auto 4x4 at a deal. Trans was supposedly bad. When i pick it up, the trans worked fine. When i got it home, i noticed trans fluid in overflow tank.Thought rad had crack letting trans fluid in from cooler? Replaced radiator , antifreeze and trans fluids. Took out on test drive, all ok. Ooops wait a minute, the rpms are climbing and im not going any faster ??? Pull over,cut jeep off.Crank jeep up, put in drive ,here i go. Limped it home, but seems like when fluid warms up, your done.Could this be a valve body issue or should i be looking for a tranny ?? Any help appreciated.Thnx