Front ends
			 
			 
			
		
		
		
			
			To explain a little more about the front ends, the 6" steering ends were not introduced until well into cab 13 production, so all the earlier 3 ton trucks had the light front end and steering box. 
So this configuration is probably correct for your truck.
		 
		
		
		
		
		
		
			
		
		
		
		
		
	
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