Gears guestion

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H

Hemihog6.4

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Ram Year
2015
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6.4 hemi
I have a jeep jk that I regeared to 4.88 running 35" tires, Rach reads about 3200 rpm at 80mph if I regear my 2500 to 4.88 will the Rach rpm be close to the same? Truck has 35s also
 
Burla

Burla

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2010 Hemi Reg Cab 4x4
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Tach? Probably not, transmission shift points set when they shift by rpm's. But since you will be out of gears at 80, as in you will likely be in your last gear, that sounds like it may be close, give or take 500 rpms, maybe as much as 1,000. You have two completely different transmissions correct?
 
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