* Suspension Tuning: The Z71 has a more robust suspension setup, often with Rancho or similar shocks tuned for better off-road performance. This provides increased travel and better control over bumps and uneven surfaces.
* Skid Plates: Z71 models usually have additional skid plates to protect the undercarriage from rocks and debris.
* Hill Descent Control: This feature helps maintain a controlled speed while descending steep inclines.
* Locking Rear Differential (sometimes): While not always standard on *all* Z71 trims across all model years, a locking rear differential is a common addition. This improves traction in low-traction situations like mud or snow.
* Appearance Enhancements: Z71 usually includes distinct badging, and often has unique wheels and tires better suited for off-road use (more aggressive tread pattern).
* Other Potential Features (depending on year and trim): Some Z71 packages might also include features like electronic traction control adjustments specifically tuned for off-road use or upgraded recovery hooks.
In short: A standard 4WD Silverado is capable of handling some light off-roading, but the Z71 package significantly enhances its off-road capabilities with upgraded suspension, protection, and control features. The difference is in the level of off-road readiness and capability.
