How much fluid will my rear end hold ????

David I'm not sure how much a 7-1/4 or 8-1/4 holds but I know the 8-3/ in my Cuda only held 2 qts. so I'm sure yours won't be more than that. Just get 2 and you should be good to go.

BTW: I understand that it don't have a drain plug cause none of them did but It has to have a fill plug somewhere or you wouldn't be able to get the fluid in. I think the 7-1/4's have the same setup as the 8-3/4, a plug in the pass side of the main case. I had a 8-1/4 in a Dakota and it had a fill plug in the rear cover.