2005 GMC 2500 crew cab, 360,000 miles, 6.0 gas 4 x 4, 410 gears, pulling a 27 foot gooseneck. I had replace the engine at 210,000 miles and the transfer case at 355,000 miles. Purchased new.
2004 GMC 3500 crew cab, 451,000 miles, 6.6 diesel, 2 x 4, 373 gears pulling the same 27 foot gooseneck...