I've got a 07 nnbs rcsb silverado 4x4. I want to lower it 4/7, but I can only find 2/4 and 3/5 kits for it. I've heard the suspension setup for the 2wd and 4wd are the exact same except for the front axles. Where can I find a 4/7 drop for my truck or can I just buy a 2wd lowering kit?

 

Should be all the same. I'd do it by spindles, Belltech struts, and a flip kit out back.