Although we have no specific confirmation about a more aggressive Z71 off-road package (all we've heard are rumors), we did notice that during one of the capability videos on the new 2014 Chevy Silverado website, there seems to be a 4x4 truck navigating a rocky trail on what looks like a set of beadlock wheels.
We've only seen the Z71 Package that Chevrolet had on the floor of the 2013 North American International Auto Show in Detroit, but that electric-blue truck did not have beadlock-type rims. Ford announced last summer that its current-model 2013 Raptors would be offered with a new beadlock-type wheel as an ordering option, but we've heard no similar announcement from GM regarding its coming truck.
The beadlock video shot is quick and happens within the first five or six seconds, but we suspect this could mean some serious testing was done with aggressive tires and wheels on what could be some kind of off-road package. From the camo-ed look of the truck, it doesn't look like a legitimate Raptor fighter, but we say anything that beefs up the look and capability of the current Z71 Package is a good direction to take.