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Old 12-15-2007, 12:37 PM   #1
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Belington , West Virginia
Join Date: Mar 2006
Posts: 304
3:42 Ratio in Dodge Cummins

Maybe this has been brought up, but I could not find anything by searching.

For 2008 Dodge has made the 3:42 axle ratio standard on both 2500 and 3500 Diesel trucks with the 6 speed manual transmission. This ratio does not appear in their literature and I cannot find it mentioned on their website, although it may be. Using the live chat on their website, I was even assured it did not exist.

If, when ordered, a different ratio, 3:73 or 4:10 is not specified the truck will be built with the 3:42 and this will not appear on the window sticker.

I am mentioning this because Dodge owners as well as salespeople seem to assume that 3:73 is the standard and 4:10 is the option and althouth that has been the general rule for the last couple of years, it is not now.

If you are looking at a new 2500 or 3500 Ram Cummins and are not sure of the gear, have a dealer check the options using the VIN through Chryslers' Vehicle Information Plus (VIP) inquiry.

I'm sure that with the power the 6.7 Cummins dishes out the 3:42 ratio may be high enough for even some moderate to heavy towing but I'm quessing it is probably too fast for the serious hauler.

I just thought it was worth mentioning.

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