trans swap

i'm trying to install a 1985-700r4 trans into a 1993 astro van and the wires and connecters are totally different can someone lead us to a way to cheat this i've been out of work for over 14 months and this is all i have to work with

You will need to make several changes outlined here:

4L60 Exchange (http://www.sallee-chevrolet.com/ChevyTransmissions/4L60_Installation.cfm)