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			Did these use the "3r" type u-joints front and rear with OE plastic injection retained caps, or did these use a 1330 with external clips?
		 
		
		
		
		
		
		
		
		
	
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			#2  
			
			
			
			
			
		 
		
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			454's used plastic injection to hold the caps. 396 shafts used external rings.
		 
		
		
		
		
		
		
			
				__________________ 
		
		
		
		
		
	
	Rick Nelson Musclecar Restoration and Design, Inc (retired) www.musclecarrestorationanddesign.com https://www.youtube.com/watch?v=62r-6vgk2_8 specialized in (only real) LS6 Chevelle restorations  | 
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			#3  
			
			
			
			
			
		 
		
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			What confuses me is that the Yoke on the 12-bolt seems to be set up for external tabs and not internal C-clips like you would find on a 3R type joint with the factory injected plastic.   
		
		
		
		
		
		
		
		
	
	Did they have a conversion U-joint or something at the rear, or did the rear joint still have the cups with grooves for internal C-clips / plastic where it mates with the yoke? What is the diameter of the u-joint caps used with the 9210 rear yoke?  | 
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