Need to spec up a drive shaft - Not sure how strong it needs to be?

Denny's are good. But personally I had enough talking to them and Denny himself and I haven't used him in years as a result. I have to think there's a more local place for you. 3" tube, 1350s, not need for billet yokes. It only needs to be the right length and well balanced. Have a local driveline place make it.