I put a SB ofe clutch in about a 8 months ago and now there is a leak between the transmission and motor and it sometimes i have to go into 3rd before i can get it into 1st or 2nd. It is engine oil leaking i'm guessing the rear main seal?? Also I was getting on the truck pretty hard up a steep hill from a take off and smoked the clutch pretty bad. It hasn't slipped since does anybody have an idea of what all could be my problem before i take it to get fixed. Thanks