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Message: [QUOTE="Corb@CorbinShipping, post: 313400, member: 2499"] If you are not hauling a ton of weight, the 3.55s are gonna give you the best mileage.... But, With the weight of the rig, and any trailer you put on there, you are going to be working your transmission to death... I like the 3.73. it is a great, all around gear. esp on a dually that does not see upwards of 15 K behind it. If you dont ever plan on going over 10 K, then the 3.55 is a very viable option. Only thing with that is you will blow a ton of smoke when you have a load, and you fall under your turbos... [/QUOTE]

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