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[QUOTE="abbottfarms, post: 508442, member: 148"] I've have had both cat and cummins. I like them both. I do prefer the cat over the cummins for the power in the long hills. Years ago I had a truck with a N-14 525hp, with 4.11's and a 18 sp and a truck with a 3406E 550 with 4.10's and a 18 sp, the cummins was faster taking off from a stop sign or traffic light, but when it came to the long hills the kitty cat had the grunt to keep on keepin on. I operate mostly on back roads so the power to walk the hills is preferable to the power to out pull a truck at a traffic light. I've got a old IH with a 855 cummins, small horsepower (just a wheeler dump), not going to pass any other trucks but it's perfect for hauling gravel around the back streets and moving equipment around and get's 6.5-6.6 mpg. [/QUOTE]
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