Alright, Got a full eaton swap and T56 in my mach 1. I have stock 3.55 gears. I picked up a set of track wheels and found a GREAT deal on some new 275/60/15 MT. I know its a 28" tire and its goin to kill my gear. Im rebuilding the rearend and plan to run 3.73 with a 26'' tire, now with a 28'' tire im thinkin about 4.10s? The 4.10 should be about the same as 3.73 and 26'' tire. Is that about right? And how bad will the car be on the 315's dr on the street?
