'89 1500 manual truck swapping to 700R4

[rmcuchn]

I have a 1989 Chevy 1500 long-bed; it was a V6 with manual tranny. I put a 355 carburated and 350 turbo in it. I found a 1988 700R4 that I want to put in it, but I have no wiring for the lock-up torque converter in the truck harness.

I was wondering how to go about wiring up the 700R4 lock-up torque converter so that it works. Some people say that I can do it all internally and that all I need is 12volt switched wire. But I need a diagram. Can anyone help me?

Also, how do I go about changing the gear on the output shaft for the electronic spedometer which my '89 has?