what is the chevrolet silverado all star package
2011 Chevrolet Silverado All Star Package includes: 1  Vortec 5.3L V8 replacing the standard Vortec 4.8L V8 engine. 2  Automatic Locking Rear Differential adding traction for slippery conditions and deep mud too.  Trailering Package includes a 2 receiver hitch, lights, electric brakes, and a transmission oil cooler.