[Rapid Ride]

I am confused about which bellhousing will work for my transmission install. When I bought my car (it was disassembled), I received what I thought was all the parts to put the trans in the car. The trans is a Tko 600 which I am trying to install behind a 351w based engine. I have a ford bellhousing # e6zr-6394-aa and have bolted everything together (without clutch) just to make sure it all bolts together. Everything seems to bolt together just fine. But as I had it bolted together, there is a large opening around the bottom of the bellhousing. I figured I must be missing a dust cover or something, went to the ford dealer, and they were very little help. Then I started doing some research on the Internet, about where I could find a dust cover for this setup, and now I have found lots of posts on various sites that say this bellhousing won't even bolt to my trans. I have verified that the trans is a tko 600 (TCET 4617 AC) is the number on the tag. So what began as a search for a dust cover now has me wondering if this setup will even work (even though it seems to bolt together just fine). Hopefully someone has some good advice. Thanks in advance.