Rear end repair or replace solid axel TR$A

["Russell Messersmith" <krus@worldnet.att.net>]

Listers: 
     Looks like I need some help or advice again.  The rear end on my Solid
Axel TR4A needs to be over hauled or replaced.  Has any one done this ? Are
parts available?   This unit is still working but making much noise.   Very
loud whine at high speed.  Ran very low on lub.  I think outer bearing are
shot.  Ring and Pinion may be weak.  How much trouble is this thing to
rebuild in a home shop? What tools are necessary?  I have access to a hub
puller made for a TR3.  Is it better to get a shop to do this work?  Any
recommendations or advice would be appreaciated.  Please reply to me at 
rmesser_tr4a@hotmail.com   Does anyone have a good used one?

Thanks 

Russ Messersmith
1967 TR4A 
1972 TR6