Trying to help someone out doing a 91 CTD/727 swap in a chevy.

On the driver side of the trans he sees a plug going in to it, purple with a black trace wiring....and an orange wire with a yellow trace.

green wire with a brown tracer running to the side of the trans behind the throttle linkage, and a black wire that plugs into the transfercase.

Its a 91 727 4x4 with NP205 .

Thanks.

 

Neutral safety/reverse light switch and the 4X4 indicator light.

 

4x indicater is part of the transfer case the 3wires should be just netural saffty wires