I have a 95 stepside 2wd with a worn out 4.3 & 4l60e. I also have a 99 5.7 engine complete with the entire engine compartment wiring harness and computer. The plan is to swap the 5.7 and a 4l80e into the truck. The truck that the 5.7 came out of had a 4l60e. What do I need to make all of this work? Thanks for the help.