Well I still need to know, Do I run my 20s(285/60 I think) or my stock tires (245/?/R16)? I know the 20s will probly hook up better but they really feel like they slow the truck down a lot, plus I still have the stock 3:42 rearend. Should I try and get some slicks for my stock rims an use them to race with only? If so wjere can I get some slicks from? any web sites or info you got will help.