FYI,

The mount in question is very similar to the one used on a 54 hydramatic. I just went through my assembly manual and could not find a picture of the mount. I did dig mine out of the pile of parts and look at it. Mine is also missing the rubber parts, but I think the rubber parts go on each side of the large flat plate. This would mean the rubber parts would have to be cut to go on the two studs or the studs would have to be replaced with bolts. I think when I put mine back together I will replace the stud with bolts.

Here is a picture of my rear trans mount.

http://s101.photobucket.com/albums/...ion=view&current=P9160009_edited.jpg

54 Chevy build pics.