[Ant]

I am about to get my driveshaft done by a very good shop and they have in 3" diameter tube to fit my 1350 weld on flanges etc, varying thicknesses of tube going from 0.065" to 0.250" so I have a choice, and would assume the 0.250" (1/4") tube is far to heavy, they have 1/8" tube, I would appreciate knowing what others use, bearing in mind I have 566ftIbs torque and 675bhp, running on slicks at times, so it will probably need to be heavier than 0.065"