I’m restoring an XK140SE with overdrive and found original trico PS-4A switches to replace the current one.
I want to come as close to original as i can. So i searches al sorts of books and documentation to find: on what side the switch should flip if the overdrive is turned on. On the car there is a metal circle that says overdrive in/out.
so my question is: should the switch when turned on(lightbulb is on) facing in or out?