I would only get the Ford because you get so much off, but as far reliability our E350 with 13,000 miles is at the dealer getting new injectors and a new turbo. Sucks when you have to crank a brand new truck 100 times before it'll run. Then out of no were white smoke would just start comming from the exhaust then go away, dealer said the turbo bearings were going. Four of my friends bought Duramaxs and haven't had a problem to complain of. Our old 2004 E350 had to have a new 6.0 installed after only 20,000 miles. IMO Ford or Navistar really hurt themselve's when they demized the 7.3 PSD, that motor will run forever. Cummins is good but Dodge's truck is junk, we have three 3500 series dually rackbodys 98,99,and 01 the A/C dosn't work any more in any of them, the interior's are falling appart. We have two 3500 series Chevy's 2005s and duramaxs and they are our best trucks.