Part #: 200-649
New Genuine Nissan rear differential cover gasket for Nissan R180 rear differential. The R180 rearend was fund in most of the 1970-78 Datsun 240Z, Datsun 260Z, and Datsun 280Z's. Over the years, some cars have been changed out to the stronger R200 rear differential. The R200 takes a different gasket, so be sure to check which differential you have. The bolt spacing and shape is different from the R180 to R200.