I own a 86 MJ thats I4,TBI,4 Speed Manual, and 4wd. I am looking at buying a 90 MJ that I6,FI,Automatic, and 2wd. My question is will my 86 drivetrain allow me to bolt up a 90 I6? And does the wire harness on the I6 an Automatic have anything important runing into the tranny?.. Or Will there be other things I need such as... Wire harness from I6,AT, and 2wd to I6,Manual, and 4wd... PLEASE HELP!!! THANKS