Review on ACDelco 12612350 Original Equipment Gasket by Jason Sullivan

Painful installation. You need to remove the front differential. Front drive axle. Rear Crossbar. Separate the CV axes. Only lower the rack to remove the oil pan. I had to drill out the rivets on the factory seal. It took me and a friend 8 hours. It would be a lot easier on a four wheel drive truck. I have a Silverado 1500LT 2011 5.3L V8 Z71 4x4