Fortunately Trans-Dapt makes a replacement trans pan with a built-in skidplate. This is one tough unit that takes care of the rocks trying to puncture it. And while shiny stuff isn’t my style, I also installed the Trans-Dapt bottom cover over the torque converter, which helps a lot too. Notice how the stock tin or replacement plastic units kept getting munched in the rocks and filled full while in the mud. Pans are available for most popular trannies as well. Information: Trans-Dapt Performance Products, www.tdperformance.com.