I just purchased a 01 Ford Explorer with a "seized" engine. Prior to purchasing I thought it would be an easy swap, because the EXP 4.0 motors are a dime a dozen. HOWEVER, I am not sure the the EXPLORER 4.0 and EXPLORER SPORT TRAC 4.0 have the same engine? Is this correct? Can a SPORT TRAC take a standard EXP motor. If not, what are the limitations? I have seen a lot of motors on Ebay, stipulating 01 4.0 motor VIN "E", EXCEPT sport trac. Is this correct. Does anyone have any knowledge on this and has anyone tried this? Please send some answers/ideas.