Hey out there, anybody had much dealings with the old riv drive shafts with the center cv unit.Im putting a 455 in a 64 riv and have crossing angles for the pinion flange and the th400 trans output shaft.The pinion is pointing down 2 degrees and the trans is pointing down 8 degrees causing the lines to cross.I heard this is why the old rivs used this drive shaft system but I didnt know how much you can get away with.Thanks for any help.