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scottkeen's avatar
scottkeen
Explorer
Jul 30, 2017

Changing Axle Ratio from 3.73 to 4.10 and GCWR

I'm looking to get a used 2004-2007 Dodge Ram 3500 truck. The specs I've found for 2004-2007 Ram 3500 Quad Cab 4WD LB DRW: 3.73 axle ratio = 21,000 (GCWR) 13,350 (max trailer) 4.10 axle ratio = 2...
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Me_Again's avatar
Me_Again
Explorer III
Jul 30, 2017
You would be much better to invest in a newer truck with a 6 speed automatic, preferably a DEF model. A 2004-2007 5.9 will have the 4 speed 48RE tranny. I towed with a similar tranny for 11 years and found it very gear bond to do a really good job like my new RAM with the Aisin tranny.

So you will spend 1-2K for gears and mostly 3-6K for a tranny rebuild/upgrade with a 2004-2007. Put that money on a newer truck.

Chris

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