Went wheelin last weekend and all was good till I tried to go over a small log and it wouldn't do it. It seemed like the trans was slipping. I didn't pust it so I went back to camp. Checked fluid and all was good so I tried driving up a stump and the same thing but this time started to smoke. Was going to do a trans flush but I wanted to ask all of you guys. What could it be? Friend told me it could be the tork converter. thank