Originally Posted By Bob J
Originally Posted By MuuMuu101
How short is the 285/30/18 in your opinion? I've seen a guy fit it in the front of an A-body, but that's more than an inch shorter than my 255/40/18.


I guess that I think that the tire is to short. With a 3.55 gear at 80 MPH the engine turns at 2,848 rpm and 3,500 with 3.23. Remember that highway speeds are 75 out here in the west so the flow of traffic is like 85. So I would like a taller tire. With soft springs the shorter tire may be better since it has firmer sidewalls. Or you have 2.92 or 3.23 gears it may keep you from changing gears.


It's only that fast out here if there's no traffic. Lol. I think I'm turning about 2300-2500 rpm @ 85 mph with 3.55 gears, 0.5:1 ratio, and a 26" tall tire. Unfortunately, exhaust drone kicks in at about 1800-2200 rpm which is anywhere between 65-80 mph in 6th.