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I'm with you George, I hated the 60 econo tune. I sent mine back and got a 60 heavy tow tune. I love that, shifts at quite high rpm's so you can really hear the turbo sing around my little town. In all reality though, I just drive in 140 almost all the time...
It lost a lot of bottom end grunt when I went to 3.55's. My mileage went up maybe 1 or 2 mpg oh the highway when I still had stock tires, but when I switched from the 235's to the 285's it was about the same mpg as before.
It is nice to cruise faster, like 70mph with the rpm's lower, but around town I don't like it. Plus not as good towing.
I also want to upgrade to 35" tires after I do my 4x4 swap and 4.10's would be nicer for that.
Originally Posted by Midwest Dually
Someone a little addicted to the dually? Dont blame ya!
yes i am
Originally Posted by Midwest Dually
I keep finding the same kind of answers on that whole gearing issue as I look. I am loading up the 4.10's in the back of mine, and wanted to make sure I wasnt going to lose all sorts of mileage.. and pretty much what you have said is about the usual answer.. You dont lose enough mileage to really be concerned!
i went from 17-18mph to about 12-13, mostly hwy driving. i am so ready to lose these 4.10's