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deltabravo

Spokane, WA

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Joined: 09/08/2003

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Posted: 10/03/19 08:52pm Link  |  Quote  |  Print  |  Notify Moderator

ls1mike wrote:

I am gonna telling having pulled my trailer with a 6.4 and 6.0. I am taking the 6.0 everyday. The gearing ruins the 6.4 and 6.0 pulls away coming up Vantage. That is 6 speed 6.4 vs a 6 speed 6.0 Towing 7800lbs and 32 feet.


Which 6.4L are you talking about?


2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2009 Arctic Fox 811 (bought new 11/9/09)
2015 Nash 17k (bought pre-owned 5/23/18)
2008 Haulmark 8.5x20 toy box trailer

RoyJ

Vancouver, BC

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Joined: 10/19/2006

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Posted: 10/03/19 09:16pm Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

I don't beleive you could get a 3.42 in a gasser 3/4 ton. That would make it largely worthless as a heavy duty truck unless strictly for hauling 3-4 or a ton in the truck bed.
It wouldn't pull a ..........nevermind, my dads old saying for this isn't family friendly!


You have to take trans ratios into account when looking at rear end ratios.

A 6L90 with 3.42 is equivalent of a 4L85 with 5.54 diff ratio. 4.02 1st gear vs 2.482.

To call a 2008 6.0L gasser (4L85) with 5.54 ratio "worthless" is a bit of an exaggeration...

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