Well the old/new Dually got some work in this weekend, drove it on a 160 mile round trip to pick up my brothers 80 model SWB to put floor pans in it. Averaged 65-70 mph@2800-2900 rpm and got 8mpg. Really happy with the way it drives, cab is tight, wind noise is minimal and all things (except the gas gauges) seem to be operating normally. I have the beginnings of night blindness so I'm going to be looking to upgrade the headlight performance, my trip back in the dark with "old school" headlights was not fun on the dark two Lane country roads between here and my brothers house not real fond of hog or deer hunting with the front end of this truck...