Metal clad transmission seal.
Thin wall seal, 2.762" outside diameter X 1.821" inside diameter

GM transmission pump seal
2.762" outside diameter X 1.821" inside diameter

1.818" Outside X 1.360" Inside Diameter.

0.753" outside diameter X 0.463" inside diameter

GM & Ford transmission extension housing seal
2.378" outside diameter X 1.441" inside diameter

.752" outside X .501 inside diameter.
This seal does not fit Powerglide, TH180, 4L30E OR ANY front wheel drive GM transmissions.