I’d sure like to see a Dodge 5500 along side an F-550.
Only thing that impressed me with the F-550 was how much weight it could hall. The differential, and rear spring cluster was quite impressive too. The Frame got my attention also. I looked for a good picture of the frame, but couldn't find a real good one. 1st picture under the hoist you can somewhat see the thickness of the frame, doubled 1/4-inch steel, for a total of 1/2-inch thick.
http://www.photolava.com/view/8oke.html
http://www.photolava.com/view/8okf.html
http://www.photolava.com/view/8okg.html
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2007 3500, C&C, 4X4 Quad cab SLT, with 6.7L Cummins / 6-speed Aisin, 4:10 gears, and 9 1/2-foot Aluma flatbed.