Good evening. I am one of the guys that machines an adapter ring for the transmission hole in the bellhousings. We use either aluminum or steel, whichever you want. The steel ring should be secured with some very good adhesive, such as JB Weld. The aluminum ring can be secured in a similar manner, but, I personally recommend drilling and tapping 2 holes at the intersection where the ring fits into the bellhousing. You then install set screws and Loc-Tite them into place. I get $28 for these adapter rings and will include shipping to the lower 48 states. I also am willing to fabricate most anything else that you fellows might need. We are always looking for a little work that has a high Entertainment Factor. Our shop is outside Louisville, KY. But, UPS runs everyday. Best of luck to you guys.