Wrong Transmission?

I picked up this 65 Fury that came with a freshly rebuilt transmission. I thought it was the original one that came out of it. However the mount and crossmember aren't even close to lining up. Also the new mount I bought from RA doesn't match the holes in the transmission case. Here's a picture. Anybody know what this transmission might be out of? I pretty sure the crossmember is the original.
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Author: azblackhemi