Changing differentials vs. aux overdrive

Changing differentials vs. aux overdrive

03-04-2004, 04:46 PM

#1 (permalink)

RWheeler

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Join Date: Mar 2004 Location: Austin, TX Posts: 3

Changing differentials vs. aux overdrive

Just got my 04 2500 4x4 CTD. LOVE IT. Only thing is I had to settle for a 4.10 diff with the six speed tranny...About 85% hwy miles >70 MPH at 200 miles a trip. I put the 315 tires on it and I'm turning 2350 RPM's at 70. Thinking about how to get the RPM's down at hi speeds. Should I go with an aux overdrive or try to change the diff to 3.73 or lower?

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