Installed a 5 Ton Series Keyed Ignition Switch from Big Mike's Motor Pool.
Actual installation time was about 15 minutes, it took me longer to set up my cameras.
This was not in response to the recent theft of a 5-ton, reported on this forum.
I believe the 5 speed Hi Low Millennial Theft Device that came "standard" with my vehicle would deter most would be thieves, with that said I'll sleep a lot easier knowing I have one additional layer of protection.
The hole in the dash is smaller than the threaded diameter of the switch so you'll need an 11/16 inch pyramid drill bit. The only other tools were a Flathead screw driver to remove the old lever switch and a 5/8 inch wrench to remove the old dash nut.
The leads are labeled B, R and S.
R corresponds to wires 12, 54 or29A;
S to 14, 14A or 498A
B to 11, 11A or 5B.
As it turned out my M813 has 14, 54 and 214...
Mike Virili stands behind his products. I gave him a call and he sent me a copy of "Form 7070301 Circuit Numbers" where 214 is the Starter Switch or Relay Feed Circuit and would thus correspond to the B terminal.
Before installation I hit the wire leads with silicon spray to loosen the rubber connectors which get brittle with age, already tore a couple apart from other repairs. No other problems and the truck started like usual.