Ok you gear heads, I have a question which is not important at all however is a curiosity. Say you have two trucks running 35-inch tires and one truck has an overdrive with a .77 ratio and running 4.10 in the differential, the other has an overdrive with a .69 ratio and running 4.56 in the differential (otherwise trucks are identical). According to the math they both will run 75 mph at 2,250 rpm (ok fine the 4.56 truck runs 7 rpm's less but pretty insignificant). My question is does one have any pulling advantage over the other at that condition or is the final drive ratio all that matters and they would have identical pulling power (or maybe torque would ne a better term)?
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