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59 Chevy / Cummins-2

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#31 jdcrawler OFFLINE  



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Posted May 26, 2012 - 04:48 PM

I was just thinking what is the max governed RPM of the Cummins? The 6.2 was around 3000 I believe, if the axle ratio is to low the truck may not have much speed to run the hi way.

These are the first diesel engines that I have owned so I really don't know much about them but I would think the Cummins RPM would be about the same as the 6.2 though.
My uncle made two vacation trips out to California towing a fifthwheel camper and he said he had no problems running 75 on the expressways.
I don't know what rear gears the Dodge had but my truck has 373 gears so I don't think I'll have any problem with highway speeds.

#32 Amigatec OFFLINE  


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Posted May 26, 2012 - 05:47 PM

My 6.2 Diesel truck had 4:11 in it. But it wouldn't hurt to check the Dodge, I seen to remember they had higher gears in them, I was thinking 3:41, but I may be wrong.

They are easy to check anyway.
  • jdcrawler said thank you