I have a 96 4.3 4x4 i had to remove the 2 black plugs on the back of the oil pan that get sandwiched between the oil pan and the bell housing(they got destroyed when i removed them so reusing them is not an option). Anyone know what they are called or where i can get them?? called local chevy dealer and they had no idea what i was talking about as it did show up in any of there systems.

 

OK i found them in case anyone needs the info the are called

Plug, Transmission case

GM Part No.: 12554466