Where can I get a transmission mount?

the pic above that walt posted is the spool type. the other type, not sure what its called looks like this. i use the tall/square mount.

Sorry to bring up the post again, but I'm looking for info on this for my '69 Dart. How does the tall PU mount fit on your car? I bought one for mine, but the 727 hits the top part of the cross member before the holes in the bottom half are even close to lining up to get the bolts through.

I've even tried putting a stock rubber one in, but even now the trans is pushed up too high which isn't doing the alignment of my driveline any good.

~Alain~