Driveshafts for BBC powered longbox?

[swifter]

I was wondering what driveshaft(s) you faster guys are using for longboxes? I'm stepping up to a .040 over 454 this year from my mild smallbock and was wondering what U joints and steady bearing you guys are running? Has anybody just went with a custom 1 piece driveshaft? As well, what pinion angle were you running?

68 GMC Longbox
355 with flatops, full ported 882's, 480 lift 280 dur.,1.6 rollers, Performer RPM
700 Eddy carb, 3000 stall,B&M shift kit Turbo 400,3:73 posi with 325-50/15 Quick Times

New motor, early 70 454 ,082 heads, Keith Black domes ( haven't made my mind up yet on cr) Comp 550 292 dur cam, and toss up on intake and carb combo.