Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

4:10 to 3:55 swap questions

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Old 01-20-2008, 09:49 PM
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4:10 to 3:55 swap questions

I am wanting to swap gears from 4:10 to 3:55 to hopefully gain mpg and speed. I need to know what is needed in this swap. Do just need a ring and pinion? or do i need a carrier as well? Any input would be greatly appreciated.
Old 01-20-2008, 10:28 PM
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Carrier split on the D80 is at the 3.73/4.10 mark, so you will need a carrier for the rear. D60 split is 4.10/4.56, so if a 4by, the front should be good.
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