Th-400 to 700r4

[Blue 04 Z71]

ok I'm sick of not having OD in my 89 c2500. I know a 4l80 would be better but I'm not dropping the money on a stand alone computer. I have a lead on a rebuilt 700 with 22k on it. What all do I need to put this in my truck? I know i need a new driveshaft, wiring is what's got me. I know my current trans has a white 4 pin connector on the drivers side that looks like it would plug into the 700?

Thanks in advance!

 

[Jeffro87]

Plug is for lockup and need a place for line pressure cable, that leaves good adjustment. I ran mine behind a1987 383 monte ss for 15 years with 0 issues without lockup. Ran a hefty cooler. Never overheated. Would, however, tryto get it wired properly.