The factory skid plates on most 4x4s are rarely up to the task of withstanding repeated trail use and abuse. In most cases they are manufactured from thin material and offer only a limited degree of protection. Sometimes the factory skid plates will even limit ground clearance and actually create a low-hanging nuisance that catches and hangs up on obstacles. One option is to remove the offending "protective" skid plate but that can leave the item it was supposedly protecting even more vulnerable. A better option is to upgrade to an after market skid plate assembly such as that available from Poly Performance.
Poly Performance's complete Jeep Wrangler JK skid plate system includes an engine oil pan skid plate, a transmission skid plate, and a transfer case skid plate, all of which are available in raw steel or powder-coated black. These skid plates offer a well thought out design that fits the JK seamlessly and provides a factory-like look with aftermarket-like durability.
Check out the photos and captions for more information about the Poly Performance skid plates, and to see the installation process as they are bolted-up to a 2008 Jeep Wrangler JK Rubicon.