You are going to have to be more specific and give much detail when you ask questions on forums.
So here are some questions and info for you.
1. Do you have a 4 speed with granny low? floor shift?
2. Do you have a 3 speed on the column? (that seems like what you may have). SM318
3. Do you have some other transmission?
The SM318 transmission is mounted onto the bell housing and has support on the tail housing. Which I believe lands on a crossmember.
This may be what you are asking for if you are talking about the tail mount. Not really called a bushing. If not, let us know. The words that throw me are: "bushing" on "side of frame"????????
SM318