I have a 2002 Dakota with a 3.9. The engine has 200,000 miles and is in need of replacing. I have picked up a 1999 Dodge Ram 1500 van with a 3.9. After looking up the vin on both vehicles the only difference I see is one is a MPI and the other is SMPI. Does any one know if anything issues I might have? I have tried to double check everything I can think of. Thanks