Just like the topic states. I just changed the fluid and filter,and the gasket I took off was cork. The reason why I ask is to see/check if the owner before me ever chanded the fluid and filter before I got the car. Thanks.

 

Anybody?

 

i believe they are cork

but just because the gasket was cork doesnt mean he didnt put a cork one back on when he changed it if he did.

 

Very true. The replacement one I received was rubber, but when I changed the fluid/filter on my 91 (see sig. 4l60e) it came with a cork replacement. That is why I am curious is to find out for sure what the stock gasket material is. Thanks. Anyboy else know?