I have my late 60's muncie m20 bolted into my car, today I was topping off fluids in the tranny getting ready for the maiden voyage. I noticed the numbers on my belhouse as 460486...which after searching the net I am finding out is a truck belhouse. Everyone is saying it wont fit a car muncie, something about the hole is bigger on this particular belhouse. My question is...I already got the tranny in, everything bolted up find, everything slid together, all the clutch rods and fork fit as it should...Am I gonna have problems? I have read they make a ring to size the hole proper...how do I know if this bell already has it? Please don't say i have to pull the tranny! What could happen if I have this bolted together and it dont have the smaller ring and I drive the car? Please help me out guys....I am so close on finishing this car....I dont want to take 4 steps back.