I went to a local guys house to buy a driveshaft for my 71 340 cuda 833 tranny 8 3/4 rear. He shows me a drive shaft that he has for sale . It was the correct length but it had a small rear u-joint. My question is ,,, Did a 340 71 cuda with a 833 tranny come with a small rear u joint or should it have the bigger one??Thx