First thing I say about axle bearings is, are you sure they are bad? You've pulled the axles and seen that they are chewed into? Just saying this because of all the noises I've ever had from a rear end, the axle bearings were never a problem, and ALWAYS a hassle to replace.
I believe the assembly is identical to the 10 bolt, only larger, so slide hammer is the only way to get them out. They usually come apart when you use the hammer on them.