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[jfairbarn]

Bigjimcruising,

The 3.73's seem perfect to me. NO strain on the rig camper/boat on or off. I've had a lot of trucks with a lot of gas motors & trannys etc. and pulled a lot of miles. Never had a rig that handles all the road has to offer as effortlessly as this Ford diesel with this gear ratio....no I don't work for Ford. I can't recall my specific rpm's so I won't go there. I never really paid much attention since it was really effortless with the truck. Your numbers strike me as a bit high from what little memory I have. I'm trying to figure why our performance is so different? Sure sounds like your truck just isn't tuned right? Wonder if it needs some attention? On another front; you don't need to change oil via the dealer just to maintain your warranty. I average about $65.00 at the local oil joint. I do it myself once in awhile, but I don't like dealing with 16 quarts of waste oil! I do the fuel filters, drain the water filter, and so on myself as well.....piece of cake. I do carefully maintain the records/receipts etc. Anyway, good luck with your dilemma keep us posted on the outcome. If your going for the new truck, be sure and check out that new F450 (wish I was looking for an '07). Nice! Bobby Williams will take good care of you!