Probably this part/bolt?
This part/bolt has been recently discussed. It is not exactly like the original but is easier to install (and it works fine).
Does your old part not have a nut on one end?
You might have to use a press to get the old bolt out. And, you will have to clean the old rubber out of the housing. freeze the new part/bolt and press it into the housing.
If I am describing the wrong part, let me know and I will delete this post.
By the way, is the 47 torque-tube the same length as the later torque-tube? I think that one of the transmission lengths changed after the 47 model year?