im doing a swap from a 47re to a nv4500 and dont know how to wire the revers lights speedometer and nutral safety swith for clutch and also do i need to flash my ecm or whats up with that i here guys say they did it and some say they didnt have to

 

i didnt have to reflash my 97' but theres gonna be 2 wires that looks like this
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Then you have to get the special hookup for the reverse lights. Within thoses 3wires is gonna be a black wire with a white tracer. You have to ground that out for neutral safety switch. Heres a pic.
[IMG][/IMG]
I didnt bother with the speedometer anyways except for, just unpluging the wire