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No alcohol and big trucks don't mix well. And it's not recommended for the lmtv air system.

Tube with fins is a lousy outdated dryer. But has nothing to do with pads sticking to the drum. Thats from time and moisture outside. The moisture inside gunks up all your air brake valves. A newer air dryer will help with that.

Very easy fix for this. Brakes are open on these trucks. The pads rust stuck to the drums. Chock all 4 wheels well. Can't emphasize this enough. All 4. Air up truck release brakes. Peek and you can see which pad or pads are stuck. Take a big screwdriver and at the edge of the pad give it a pry...