I need to replace the black piece of rubberr behind mirror, what is it called? 1984 z28

Thank you for that answer but is that the rubber triangle piece that is on the window itself?

That would be it thank you

Wait you didn't answer I need to know what the thick rubber triangle on the window itself behind side mirror is called. Thanks

Thank you so much hopefully I can track at least one down

My car is pretty much mint condition but little things here and there needed to be replaced glad you helped me out.

I found one for the left side but not right so far. cathryn

Thanks again jim