I've only got 55k on it now, about. That's on the entire rig. Mine was ordered from Freightliner new to be made into a truck conversion. I'm guessing it should come up a bit in the mileage dept. when I've gotten more miles on it. It does turn 1400 rpms at 65 mph. I suppose they could have spec'd a higher gear (lower numerically) rear end to bring the rpm's down. I don't think it would be cost effective to change gears just for the mileage. If the rear diff was to puke out then I'd look into different gears.
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'03 Freightliner FL112, 295" wheel base, with '03 United Specialties 26' living quarters, single screw, Cat C12 430 h/p 1650 torque, Eaton 10speed , 3.42 rear axle ratio
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