wanna give u guys a heads up. im from latrobe, PA and im in no way trying to promote selling on forums but if any one needs a big block zf s 5-42 for a 2wd ive got one from an 88 and id like to trade it for the diesel 4x4 version for my project truck. if uns could help me figure out what it actually is. the serial # is 8064786 and the part # is E7TA-7003-AGB