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I just bought an 09 dodge duelly to pull my 36' Monty. A couple of thoughts to check on, a 1 ton may handle the weight but will the single tires handle the weight, E's are only good for about 3300# each on a single axel. Also the lower gears will increase the rpm's. I was told by a Dodge mechanic that keeping the rpm's below 2000 at highway speeds (75) will drastically omprove your mileage. At 75 my rpms are 1800 and I have the higher gears, have to look to see exactly what they are. I do know that running 80-85 with rpms at 2000 my mileage drops bad. Personally, if I were to do it again I would look for an 06 (prior to emissions) 5.9L 3500 duelly. My chipped 02 5.9 got 14 mpg pulling my 36' Monty, it was just to heavy for the 3/4 ton. 2007's were first year with new emmissions and have had lots of problems, 08's are better and 09's are supposed to be better yet.Anything newer than 06, Dodge, Ford or Chevy, I would definately check into the emissions and problems.
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