Enclosed Trailers....

[Chevy454]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Smokey</div><div class="ubbcode-body">Over the years I been getting bigger and bigger and bigger trailers. Started out with a Haulmark which was ok because I didn't know any better.

5 years ago I was short on space and picked up a 32 foot Team Spirit because of its size and it was twice as pretty and the same quality of a std Haulmark.

Since getting that I stepped up and go a decent diesel to pull it and was wondering about a Featherlite. I know some people here on the have them and was wondering since its all alumn and nicer yet on the quality level, do they get better mileage?? Or will I be stuck at going 59 mph if I want to get 15-17mpg??

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The problem(!) is that's where your torque peak is on a Duramax, which means you'll get your best mileage in that neighborhood...

(all stock Dmax trucks have 3.73 gear and roughly 30.5&quot; diameter tire from factory)
LB7 = .71 5th gear, 1800rpm peak = 62mph
LLY = .71 5th gear, 1600rpm peak = 55mph
LBZ = .61 6th gear, 1600rpm peak = 64mph
LMM = .61 6th gear, 1800rpm peak = 72mph
LML = .61 6th gear, 1600rpm peak = 64mph