I have a 2006 2wd reg cab. Its a DD... I want to lower it but not sure how much? I use to have a 1990 silvy with a 4/6 and liked it, but my friend has a 05 with a 2/4 and it looks good...SO im debating 2/4, 4/6, and even 5/7. Is 5/7 to low for a DD? Would just like some opinions and maybe some pics of your trucks and what you have. Thanks