The Sierra All-Terrain builds on the dynamic Z71 Off-Road package with a roster of stylish, refined and capable features that combine to create a unique truck that's ready for anything. ... Z71 Off-Road package with skid plates, locking rear differential and high-capacity air cleaner. Standard 5.3L V-8.

What is a GMC Sierra Z71 package?

Z71 is a suspension package offered by GM. You can get a 4×4 Chevy without the Z71 package, and you can get a 2wd truck with the Z71 package. The Z71 package is just upgraded shocks, skid plates, locking rear differential, and graphics.

How do you tell if my truck is a Z71?

A Z71 badge is also found on the grille, marking the truck as a fully-capable off-road machine.