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Maryland is similar, but our license classes are A, B, C. A is tractor trailer. B is trucks over 26,000 lbs, and C is cars and trucks below 26000 lbs (used to be D). The system has no means of giving an air brake endorsement on trucks below 26000 lbs, so they require a class B with air brakes...

I'm not against air brakes, I just don't think they are something to wish for on a deuce. Multiple circuit hydraulics would be a great addition. -Chuck

Ok, efficiency isn't an argument for air brakes that I have heard before. Care to elaborate Stan? In my opinion, one of the prime reasons the deuce has become so popular among collectors is they can drive it with a standard Class C drivers license. With air brakes, many states (all?) would...

Always happy to hear different opinions... even when I disagree with them. -Chuck

Air brake systems have single point failures too. The treadle is one such point. If it gets its air passage way clogged, or it gets mechanically blocked, you have no brakes. If you think to pull the emergency brake valve, your truck will stop so fast it might go out of control... there is no...

Oh, do tell! The fact that there NEEDs to be an air endorsement for drivers licenses is proof that there is inherent danger in air brake systems. I know what they are, do you? Tell us your side of the story. -Chuck

Hydraulic brakes are simpler, cheaper, and more reliable long term than air brakes. That is why they are used on every car and light/medium weight truck on the road today. Look at all of the rigmarole that truckers have to go through with air brake systems: Daily checks and maintenance...