Rugged Ridge Heavy Duty Differential Skid Plate, Dana 30.

Features and Benefits:

• Protect your factory differential cover with these heavy duty skid plates
  from Rugged Ridge
• Designed to fit the contours of your stock differential cover and made of
  durable 3/16 inch black powder coated steel, these skid plates will help you
  slide over obstacles with ease
• Includes replacement mounting hardware and instructions.
• Available for the most popular Dana differential types