Would you reccomend rebuilding a transmission or putting a used one in it? Is it too much of a risk to put another old transmission into it with the posibility of it having the same problem eventually? I know someone who said he put a used transmission into his maxima 3 different times and they all ended up with the same problem. Also, what year does the transmission have to be to fit into an 89 240? Is it 89-90 or 89-91? What is the difference in sizes of transmissions for the 89? I talked to a guy that said there are 2 different kinds (not relating to manual or automatic) and one is more pricey to fix then the other.