
 Originally Posted by 
Lotz-A-Landies
					 
				 
				
Powerlock or S.U.E. hubs are something I would be getting rid of.  Outside the problems of FWH, the SUE hubs have a two half moon cams (inside the slots you can see) that engage into a star shaped flange connected to the axle halfshaft.  With both half circles to the outside, the star can turn inside the housing unlocking the hub.  With either or both of the half circles turned in locked the star from rotating engaging the hub.  The problem is that with only one cam locked all the weight of the drive was on a very small area of the housing and the housings were well known for failure.  They are also an excessively large protruding hubs vulnerable to damage from rocks and gutters.
My recommendation, chuck them and fit original flanges.  (They would not have been fitted by  the PMG,)
			
		 
	 
 I agree with that - my IIA still has these and they are awful for coming unlocked when you really need them.  Once unlocked they can be near impossible to lock them again.  I pulled mine apart and the cams were worn, will replace them with a different type of FWH.
It seems they are an American design made under licence by Shute Upton - original design Cutlas Tool, Illinois.  There is an article on them here Everything You Ever Wanted to Know About Hubs But Were Afraid to Ask
				
			 
			
		 
			
				
			
			
				
Paul
1971 IIA ute, 186 (Betsy)
they're not dents, they're character...
			
			
		 
	
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