I'm assembling a 1750 transmission for a recently revived Duetto project and have come up with a problem. I was about to install the bell housing from the original Duetto trans when I realized that the input shaft seal was too large for the 1750 shaft. Since I don't have any other bell housings around, I'm inclined to have a machinist friend make an insert so I can put the proper seal in the bell housing that has the correct set up for the clutch linkage. Any reason not to do this? I don't know if there is a 1750 bell housing that would have the proper setup for the non-hydraulic clutch system. Your input would be appreciated. Thanks, Dave B.