85 sub trans swap???

[chris30ort]

hi, just swaped my 85 suburban 4x4 trans from a 700r4 to a built th350 how do i rig my reverse lights up ,the 700r4 had a plug with 2 wires and the 350 only has 1 flat plug pin to hook to

 

[zora]

I would assume the existing plug has one hot wire and one ground. If the 350 pin is acting as a ground with the trani in reverse attach the hot wire to the pin.

 

[chris30ort]

thank you for your help