Thank you for the reply. I replaced with gm oem struts and shocks so nothing different there. The front has dropped maybe a 1/8 inch but the rear about a inch or so since new. I seen people on forums with cracked and/or broken leaf springs on 2007-2013 Silverado and Sierra 1500 trucks since posting this so now I'm even more concerned but not sure if I really should be at this point.
