I have a question that may be kinds tuff but here goes. I have a 74 Nova. I was told by the previous owner that the rear is out of a 73 442 Olds. It has a 373 with An Auburn Posi. Can anyone tell me what size and how strong this rear end is. Also if anyone can tell me how to identify for sure. It would be a great help when I look for parts as in brakes or bearings. Would like to know what rear(size) came in 74s cause I have another one that will be raced this year ,373 posi but don't know how it will stand up. I know this is a lot of questions so I really appreicate any info I get. I am a new member but this site seems to be too good to be true.