hillbilly slim

Right now my 1987 XJ has pressed on timkens(u360L). Was wondering if i can cut those off, and goto yukons(ak1559) inserts(axle housing)? Reason being already have new yukons from amazon which looked like nothing i had and then autozone tried to hook me up with what my jeep is suppose to have, but they were too small(duralasts set9az). Just curious??? Slapped it all back 2gether yesterday cause we wanted too jeep, but will be doing the pinion down the road and want to renew rear wheel bearings then! appreciate any info....