Thanks for all the responses. If I go with 4" it will be a long arm, 3" will not. I am still undecided on which lift though. This forum seems to be very pro EVO. So I've narrowed it down to EVO, Synergy and Rock Krawler. Very hard to know what to choose. Scared to make the wrong choice, everybody has a reason why they like one over another. Thanks again for all the input.