yes! that's all Im asking. for the sake of argument, hypothetical, everything being equal, no variables, same rpm, same car, same size tires, same everything. is there much of difference between a ring and pinion of 3:23 ratio and 8 3/4 diameter vs a ring and pinion of 3:55 ratio and 8 3/4 diameter? for rusty's benefit...the reason I need to know this information is whether to change my 3:23's to 3:55's. I happen to like to know how things work, the physics behind how they work, what might improve or detract from the results of how they work. ( things that keep me up at night...how do bees fly without wings with built in lift?) I like quantifiable information vs anecdotal. My apologies for over complicating things.