[cobrafx]

Hello all, here is the first of what I am sure will be many stupid questions. I have what I believe to be a Tremec TKO. The belhousing is steel, probably a lakewood since it does not look like the quick one. It is very rounded and no markings. One side of the mounting holes are captured and 7/16 course. The other side are not captured and NOT the same size as those captured. They require a larger bolt size but a 1/2-13 wont work. The 1/2-13 will not go through the holes in the trans. Any advice? Thanks
Jaime