Used SSI rear gear cover. Made from billet alum. and has been black anodized for a stealth look. Cover has a 1/8" pipe plug for a oil fill hole and a 1/8" pipe plug for a drain hole. Cover is in good shape but does have a small ding on the right side which can be seen in the fourth picture. Fits all SSI 8-71 thru 16-71 superchargers. Order online at www.rbssuperchargers.com, part number 7006-0005.