As far as I know they are the orginal wheels, looked at pics of the other 54 I had seen on ebay and the wheels are the same for both trucks, not sure what the brake drum size is , the brakes were up when I got the truck so have done pretty much nothing but drive it. The tires are tube type. Wanted to repack the front wheel bearings but anm not sure if the bearing dust caps screw on and off or if you just pry them off. They are not rounded like on a 1/2 ton truck, the dust caps are 6 or 8 sided as if possibly a wrench is suppose to be used. Didn't want to ruin a cap as would be hard pressed to find another.