axle gears

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#11

10-01-2010, 12:34 PM

CSIPSD

Diesel Bomber

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I would go 4.56 if it were me... I am running 37's with 4.30's and its about perfect.

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#12

10-07-2010, 08:46 PM

Bigred7.3

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Yea that sounds good wit the 4.56

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#13

10-12-2010, 09:47 PM

American Thunder

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Quote:

Originally Posted by cummins bronco

i am running 4.10s with 35s and i find them too low, on the highway it is turning too much rpm, i think with a good tuned up diesel you are far better off with higher gears than lower.

and you can't really compare gasser gearing to diesel they run in totally different rpm ranges.

I have 3.50s with 35s, but no overdrive, and I'm turning about 1900 rpm at 55 mph. I'd like to drop the rpm down some more, so I'm in search of a Dana 61 front axle with 3.07s. Once I get one, I'll swap in 3.00s into the 9" rear and convert it to 8-lug. My truck has power to spare, so deep gearing is just wasting fuel.

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