transfercase

I'm currently working on my 1981 c10 chevy, and I've found wires coming from my 4wd transfercase. I have no idea where they're from or where do they go or if they're even stock at all. Anyone has had something similar? Images related.

I have a 1976 Chevrolet K10 with a 350 and I believe TH350, it has an NP203 tcase that I want to eliminate for better fuel mileage(truck is being built to be a cruiser that can drive wherever whenever) i recently traded off my 1981 Frankenstein for an 86 k10 Silverado and an 80’s k20 frame. The...