Before.........2015 Silverado LT, 5.3L AFM, 6 speed trans, 3.42 rear, All Star Package, HD towing. Very nice truck, I really liked that Silverado. Did a nice job towing a 2006 19' 8" Champion bass boat, 3500 - 4000 lbs. At 98,000 it developed a tick in the engine. Long story short, wife said buy a new one! Who am I to argue.
Before the 2015 I had a 2005 Silverado LS Z71 5.3L 3.73 rears. Again, very happy with that Silverado as well. Probably would still have that one if I wasn't hit head on by a young lady, 9 months pregnant on her cell phone. Everyone was OK, but my Silverado was totaled. 198,000 on that one.