sleeving 8 3/4 bearing housing???

The axle tube might have slipped into the housing end in some applications, but I have not seen a 8 3/4 housing like that. My neighbor narrows and repairs rear housings. I have had him cut the housing ends off, cut 1” off the tube and weld the ends back on. He chucked the ends in his lathe, and cut off the old weld and trued up the end. So I think someone could repair your rear with a new housing end.