I need some opinions. I was going to get a super charger next year but need to spend some money on getting my rear end rebuilt. I also will be getting H&R sport springs, Blistens new rims and tires. That leaves me with not much money. So I was thinking of just getting gears and not get a super charger for at least 2 years or so. My problem is I keep thinking 4.10s will be to much gear. I drive at 80 on the highway as do most people around hear. With OD on I'm at about 2,400 RPM with OD off I'm at 3,000 RPM. I just don't no what to go with, 3.73s or 4.10s? I need some opinions from some automatic people.