I have the 3.73 also and will say i wish i had the 4.10 or lower when pulling. 1st and 2nd gears are way to long. 2500lb trailer, 7000lb tractor +. But love the 3.73 when cruising the highway with no trailer. 17-20 mpg easy. 2014 2500 crew 2wd 8'bed. 86,000 miles and only dealer recalls...
I need a guard on mine. Had an owl fly in front of me at 70mph last year. Broke the tabs holding the grill in. You can't tell until you push on it.
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Just about any muffler you put on in place of the stock one will help but you will get more drone in the cab. I just replaced the stocker for a 3.5" straight pipe and left the res on.Almost no drone at all in the cab. But you definitely hear it when you get on it. Ideal and cruising speeds...
Just put a straight 3.5" pipe in place of the stock muffler and leave the stock resonator on. SOUND AWESOME! LOUD! Almost no in cab drone at any rpm or speed. But put the loud peddle down and the ppl in the cars next to you shit their pants.
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