| This is the side seal for the R180 Differential. Uses 2 per car. This listing is for a single seal so if you want both be sure to enter 2 for quantity. Always be sure to double check the style of differential that you have in your z before ordering parts. For identifying by picture, which diff you have just go to Used Differentials and look at the pics for the 2 styles. There is the R180 and the R200 for the z cars. You can also look at the rear cover gasket and tell from those pics as well. If we happen to be out of stock on these seals, it usually only takes us a day or two to get more. We now sell an LSD conversion kit for both models of z car differentials. See listings. Last update 12/11 | 
