well as of last year at work we just bought a batch of new freightliners. They have discs all around, they even have discs on the new trailers they bought. I used to work at kenworth about 5 years ago, and at that time I saw one single solitary truck come down the line with disc brakes, the rest were drums, but since I didn't actually work on the line it is quite possible I missed some. So I don't know exactly what it all means. But as far as OUR trucks, I have no problem parking it, the brakes work fine, I can make the tires lock up so I don't know how more braking capacity would benefit me. with the exception of it pulls a bit for a brief moment if I have to really stop hard, I think that may have a bit more to do with the fact I need to get tie rod ends, but since it drives better than my mustang I'm not too worried about it. My biggest concern when I stop hard is someone not noticing the brake lights and plowing into me, since everyone is pretty much brainwashed into looking for the third eye brake light nowdays. However I do have a wire coming from the harness just for that purpose, just gotta decide how exactly I want to set that part up. Then one last little caveat on the drums, water.... if you get water actually in the brakes you may as well be dragging a pencil eraser on the ground out the door, until it finally dries out then it wants to send you through the window, but unless you drive through huge puddles slowly you don't generally have that problem, I have only encountered it 2 or 3 times in 30 years. These trucks have a wonderful air conditioner, that little vent on the cowl and windows that roll up for cold weather and down for hot weather. I accept that summer is hot and winter is cold and if it weren't for the fact I couldn't see out the window I wouldn't even have bothered with the heater. I did however go with electric wipers, (going along with being able to see out of the window thing)
