[Airdirect]

Nice looking C60! Looking at the Dayton hubs and rims, it appears you may already have tubeless rims. If so you would be in tall cotton. The only downside to air brakes is the CDL issues. If you can get around that you will never want anything but air brakes again. Air brakes have slack adjusters on each wheel that are very easy to adjust, just make sure they are within tolerance. Small amounts of air leaks are normal. For a truck to hold air overnight is the exception rather than the rule. The systems have lots of connections and small leaks add up. My rule of thumb is no hissing or audible detectable leaks. If you can track the leak down, then fix it. Just don't sweat a bunch about air leaking off overnight. Regarding moisture, you need to drain the tanks on a regular basis. Newer brake slack adjusters are auto adjusting. If you do not have auto adjusting they are easy to add and not very expensive.