Driveline Hitting underside of floor (at rear)

69_340_GTS said

2.76 is way too high, IMHO. I'd put very some easy to find 3.23s in it, which are a good all-around gear.

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All the rear end ratio calculators I've used say with a 25.7" tall tire (which is what I have: 245/45-18) that is the ratio I need to run at 2,200 RPM at 60 mph.