Hi My name is Anthony and I have a 1990 Blazer, Full Size, 4x4, AT,5.7L and the front driver-side outer-bearing is toast. I took the hub and spindle nuts off to replace the bearings, but I can't seem to get the assembly off. I may be wrong, but I thought the spindle nuts are what keep the hub assembly and rotor from falling off, which leads me to believe that the inner race of the outer bearing is fuzed to the spindle.

I have tried everything except localizing heat to the inner race in order to expand it, and my next step after that will be to break out the plasma cutter.

Any Ideas........? (I attatched some pics)

 

Does the exploded view below make sense, especially the locknut (2) and locking ring (3)?

 

Yes, that is my exact assembly.

 

Then, that locknut takes a special 4-slot socket (OTC 7157 or knockoff):