It looks to me on the pic that the axle in question here still has the 5-260X u-joints.

Does anyone know the spec on Jeep 44's for stock joints to know for sure?

I know the early bronco's had front 44's with the 5-260X u-joints...which can be broken spinning 33's, no locker.

FWIW it looks in the pic that it is a 6-lug hub - maybe it already has chevy outers