Looking at buying a truck a guy has for sale...it has been pretty much rebuilt front to back. The guy is selling cause he has run out of patience and time to work on it.

The main thing wrong with it he says is that after a couple miles of driving it the trans seems to overflow out of the top...fluid looks bubbley if you pull the dipstick....says he has pulled the trans a couple of times...replaced the radiator....not sure what else to do and just wants to get rid of it......any ideas???