Jack, I am so glad you started this thread, as I too have a smooth-case I bought off ebay as a stand-by tranny (I have switched to a ribbed-case on my BE). Due to this thread I went out to check mine and it is also just as you describe...all backwards! In addition, the T/O bearing fork ends with a ring/loop on the end instead of a fork and clevis pin!! I will be watching this thread to see if someone can come up with an answer. In fact, I am going to take a couple of pix of mine and post them here to help with the ID! I also happened to have a spare ribbed-case handy, so I put them side by side for comparison. Jack, other than drilling, tapping and re-situating a couple or three mounting studs, it appears that a new front cover plate would enable switching sides, that and drilling and tapping holes to mount the slave!!