Is the stock type transmission mount strong?

My memory is a little fuzzy, but i recall a tab you have to bend over the new mount.
This may be exactly right. When I was removing the old 48 year old mount from the crossmember, it fit so tight, I had to work to get that thing out. The new poly just dropped right in. I'm going to try this! Thanks! I appreciate all the help. I'm new to Mopar stuff. Man, have I had to learn alot.