Drive shaft thoughts

crackedback said
Why so big? RPM is a killer for large diameter driveshafts. Mark Williams has a neat matrix regarding critical DS speeds. Might take a peek at it.

Most cars are fine with a 3-4 inch unit.

I've used Tattons drive line in Utah.

Cool, I'll take a look, I was just throwing that 5 inch number out there. As it turns out most of the drive lines were a bit to scratch & dent for me.