Mike B, It's just a regular brake pedal. It does have 2 air tanks that are connected. Looks like only to increase air capacity. There is a air powered booster under there too.
Spanky, That's the way the tag reads on mine too. The a in 45230a probably stands for air also.
There is a military contract number on the dash plate. Anybody know where that number can be researched? It would be very interesting to know that history. It does give the build day or the delivery day(I'd have to check that again) for the truck which is cool.
