anyone taken the gears out of a 1 ton and put in 3.73 or 3.55's in them? I think the 1 tons have 4.10 or 4.30 cant remember which one, but at 70 mph i am at 2200+ rpm. I used to have dodges that all had 3.55's and could pull a freight train. A 6.4 should be able to do the same. I know the I-6 has more low end torque than a v-8. thoughts/suggestions.