I have the driveshaft you are looking for. Its from a 74 Duster 4 speed car with an 8 1/4 rear end. It measures just a little over 52" center to center. The original yolk on it was for a 4 speed 833/727 and was removed,but I have a yolk for a 904 that will go with it. $50 + shipping sound fair! PM me or call me at:734-678-1162 if interested. Greg