3.73 or 4.10?

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09-04-2013 | 03:49 PM

#11

ROB FREEMAN

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Joined: Sep 2006

Posts: 2,123

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From: Wis

have you actually watched youre exaust gasses temps under load . vs rpm ?? check it out and return youre findings ..

09-04-2013 | 05:08 PM

#12

offshoredrillin

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Joined: Feb 2004

Posts: 12,315

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From: Maryland

Auto with overdrive trans? if so go with the taller gear just tow in tow/haul mode..

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