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			Hi Ron.   The diameter of the all steel wheel U72a is 20 inch, same as the rubber wheels U72 according to my parts list. 
		
		
		
		
		
		
		
		
	
	Jack, thanks I hadn't picked up on the return roller, I'll have to keep my eyes open and see if any NZ carriers are fitted with these parts. Thanks David...  | 
		
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