Back Up Light Switch Engagement Conundrum

Robbie2734 said
Welding the arm might do it but there is something going on thats not correct. Do you have the correct switch? There are 2 that I know of, a 2 post and a 3 post. I'm pretty sure they can't be interchanged, the contact arm won't work. This might be your problem.

I have a two-post switch.

mopar head said
This is what I`ll do if I ever open my trans up again.
The aftermarket switches are just a tad too short, so I put my leaky OE one back in just to have lights.:protest:

Actually, I have two of said two post switches, and if I understand correctly, one of which is the new style and one of which is the old style. The new style has the "jam nut" style short hex ring, with only the switch prongs exposed through the plastic portion, while the old style has a longer hex section and fully exposed switch tabs? In any case, I tried both, and neither worked.