I am in need of an inexpensive driveshaft for my 68 Barracuda. I'm running a 6 banger/3 spd. manual with 7.25 rear end. I need the stock driveshaft, it's about 51.5" center to center on the yokes. I do have one 2.5" longer that fits a Dart but won't work for my Barracuda because of the different wheel bases.