this isn't a build post or a guide. I just wanted to tell you my expertience, and thank Down South for hooking me up.
2006 DCSB, purchased 3 months ago with a 6" ProComp Lift already installed. I loved the truck, had some sweet stuff done to it, just was a bit high. I didnt do my research and thought i could swap out the suspension and Lower it a bit. No Dice, had Drop Bracket of course, these terms i was new to. So contacted Down South motor sports and they hooked me up with a bolt in replacement Icon kit.
So front Icon Coils went in pretty smooth. The one side we had to cut the lower bolt on the stock Shock out. It had welded itself to the shock bushing. So Bolt shop first for Grade 10 bolts to be safe, then proceed to cut. Icons in with Coilovers set at about halfway threaded, which was about eqivalent to the Stock shock with the ProComp giant spacer above it. So we started cranking it out till we had about a 4" lift in front. Ran out of time for the day, so drove it home. Instant huge difference, ride was amazing in front end. Bumps were amazing, handling incredible.
Next day started the rears. luckily shackles werent seized up too. The U bolts with the giant axle blocks were fucked. We had to cut the U bolts off. I got Dakars with AAL instead of doing a 1" or 2" block. very good choice. For anyone else thats like me, we couldn't figure where the AAl went. if you dont put it at the top of the stack between 2 and 3 leafs it wont bolt into the truck. It hits the shackles. So basically you have two identical leafs in the 3 spot. Now the truck rides amazing, those Dakars make a world of difference. We also put the 15 degree or so Shim unde rthe leaf pack on the axle, and the OME drop kit. No vibrations at all in drivetrain.