There was evidence of a tar like something that had the original
one stuck to the bottom of the cover. I haven't glued mine down
yet because some day I'm planning to spend a complete body off
the frame winter. That is, if I ever get finished getting ready
in the new barn/auto shop/spray booth/machine shop/wood working shop.
What ever you use, it needs to seal the opening so it doesn't
form a pocket between the gasket and the cover. I think this
was GM's way to add a little sound deadener to the floor boards
at the same time sealing up the trans cover.
Denny Graham
