Possible to swap in a dakota/cherokee 8.25 sure grip

Yes any pre 97 carrier will fit in an A body housing. The only thing to watch for is the carrier designed for the 2.45 and 2.21 gear set which only works with those gears. Also in 75 the OD on the carrier bearings changed so if your going to put a 75-96 carrier in your 73 rear you'll have to swap the bearings around.