Protect your factory differential cover with These heavy-duty skid plates. Designed to fit the contours of your stock differential cover. Constructed of durable 3/16 Inch black powder coated steel, these skid plates will help you slide over obstacles and not get hung up. Includes replacement mounting hardware and instructions. Will not fit Aluminum Housing D44A.. This HD differential skid plate from Rugged Ridge for Dana 44 axles. Fits over the stock differential cover. Will not fit Aluminum Housing Dana 44A.