If it was an extra 1" shorter than what is nominal, would that impose a problem? I'm just asking based off some thoughts here. I know I need to get the right thing, but I'm just curious if anyone has had more "slack" than what's nominal before and if it caused a problem. I seem to be having a VERY hard time finding a driveshaft for my '68 Satellite. I have the original one, which I could cut, but it's not as beefy as the BB driveshafts. Whether that makes a difference behind a mild 383 or not is something I don't know.