Alright, i have the 3.8, but i have an 8.8 rear end with 3.08 gears. Now would the 8.8 automatically come with bigger halfshafts , despite the fact it is a v6, and are those the same size as v8/sc ? Secondly, I heard that for gear swaps you can move two steps up or down and the computer can handle that difference? So I could swap in 3.55 gears, and not need to burn a chip or anything correct? Also anyone change the 3.08 to 3.27, how much difference that makes, or 3.08 to 3.55, just to hear someones opinion rather than numbers and rpms and what not