I'm looking to lower my '03 Tahoe 2/4, I have 275/55/20s on it with 90k miles. Right now, predrop, it drives like a boat. Floats all over. I put Bilstens on it a couple years ago but it didn't help. With the drop, and maybe new shocks, will the ride improve? Do I need to add bigger sway bars? Is there a kit and shocks that are better for ride/handling?