Hi, new to the forum. I have a 1991 jeep yj and it seems that there is trans fluid leaking from the transfer case. its leaking right at the point where the transfer case meets the driveshaft (or i guess the driveshaft comes out of the transfer case). it looks like a seal is just busted or loose. its leaking slowly (20 seconds in between) so i am wondering what i should do. do i need a new transfer case or can i just put a new seal on it?