OK, here's my situation: although I originally planned to use a T5 in my car, I decided to use the original C4 until I have all the parts and the money to do it. So I put the trans in last nite and when I went to tighten the the converter nuts, I couldn't turn the motor over. All the plugs were out and I was using a long breaker bar on the crank, but it wouldn't budge. So I loosened the trans bolts and it turned easily. I checked to see what was binding, and it seems the converter nuts and the factory weights are hitting the plate behind the flexplate. Before I remove the trans to see what's up, the only thing I'm not sure of is the location of a spacer. It's been months since I removed the engine and trans, and there is a spacer/washer that I thought went on the trans side of the flexplate acting as a washer for the flexplate bolts, but it could just as well go between the crank and the flexplate, which would space it away from the block 1/32" or so. Does anyone know the correct location of this spacer/washer? Any other solutions would be greatly appreciated. I know all the trans parts will work together, since the trans, converter and flexplate all came out of the car, but the motor is not. Are there different cranks that would allow the flexplate to sit closer?