Mike,
I haven't had much time to play with it but I can tell you it doesn't have air brakes, it's rated at 26K on the plate. Don't know the rear end specs, haven't taken it over 30mph until I change out the rear bias plys. I found a few of your truck ornaments and plan to get some more. I know what you mean about the fire trucks. I'm driving a 2007 Pierce 100' tower at work (Truck 2). The beauty of it is the 57 has the same federal siren as the tower. I think this one will clean up nice. It needs paint and I've already started outfitting it. Lots of brass. Too bad 1 of the booster reels was missing. Probably tough to find one with the same design.