Dartin for Divorce

My 80 power wagon used to give me grief, the connector never seemed to fit right, i unplugged it, heated the boot up and snapped it back on. Hasnt skipped a beat in 20 plus years.
In park or neutral,if i recall the centre pin grounds to the case, completing the circuit for starter relay.
I cant say for sure if switches are the same, between 727 and 904.
But there are 2 different lengths of switch.