This is in a 1985 Blazer, without the computer. I've found lots of posts on the lockup but nothing about wiring. This 700r4 is behind a carbed motor, and has the standard 4 prong plug that plugs into the tranny. On the engine bay side of the harness splits out three plugs, two (black ones) have obvious hook ups, there is a stray red male plug that goes to the passenger side that I can't find the female that it plugs into. Any ideas? Can someone walk outside and check theirs or post up a wiring diagram.