Automatic Shifter | Center Console Lighting

Automatic transmission builds had their reverse lamp switch inside the cabin whether column shift or floor shift until 1968 model. All manual trans builds have reverse lamp switch at the trans. Floor shifters for automatics retained the 2 bolts holes for the reverse lamp switch long after that switch was moved to the trans.
Because you said build, later model automatic trans will have a 3 wire switch on it. The 2 outer terminals are reverse lamps. We can route the 2 wires there in pre 68 model builds if we choose.