Summit: Raytech brand: 5107-R: $9.95
It's a rubber gasket that "fills in" irregularities on the housing or pumpkin. I use "Right Stuff" on the housing side, and bare on the pumpkin. I do not use
synthetic gear
oil, so it doesn't leak. It's a reusable gasket in case you goofed up on something.
Oops .... this is for a Ford 9".