Plastic socket for an American Woodmark cabinet

My cabinets were installed in 1989 when my house was built. I'm told the cabinets were manufactured by American Woodmark. I'm also told that the drawer slide was made by Grass.

The plastic "socket" that attaches to the slide and mounts in the rectangular hole (see photos) broke, and I am looking for a replacement.

Any ideas where I might find such a thing?

Thanks!
Tom

If that is the closest we can come to what I need, I may be able to "adapt" it to my needs--the 32-119 Grass Adapter, that is.

I will order and see if I can make it work.

Thanks for your reply-