Under Cover Fabworks, LLC has designed heavy-duty differential covers for the Dana 30 front axle and the Dana 44 rear axle. As of this article they are available only in kit form. This means that you will be shipped a one-piece body and a ring. You will be responsible for welding the seams on the cover body and welding that to the ring. These cover ship with mounting hardware and a fill plug. They are by far the best value in the diff cover industry. If you are an experienced welder you can save some big bucks.