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			Hey guys,Ineed a little help with the diff # on the maco.    Ring gear # 3737957  10:37  GA  9-73  2.           Case # 1A01  9  68  W.I don't hav books on diff #'s.I was curious what Motion did to rear . I know they had it out because it's purple like the engine and all bolts are non-stock.  Also engine # CE  8A11  4 5 THANKS TIM 
		
		
		
		
		
		
			
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	smooth  | 
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			#2  
			
			
			
			
			
		 
		
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			Tim, it looks like the rear axle has been changed. The numbers you supplied are for a Jan. 1968 3rd member. It was originally a 327, 3.70:1 positraction axle housing "AO". The gear's are still a 3.70 ratio by the 10 37 number or tooth count. 
		
		
		
		
		
		
			I hope this helps, Mike 
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	Big Mike, DANA T/A #2, '69 L89 IMSA, '76 DeKon Monza, '70 LS5 Conv.  | 
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			#3  
			
			
			
			
			
		 
		
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			Thats what I thought. Anything on engine #'s? THANX 
		
		
		
		
		
		
			
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	smooth  | 
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			#4  
			
			
			
			
			
		 
		
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			Tim 
		
		
		
		
		
		
		
		
	
	CE8A1145: CE=Chevrolet Engine 8=model year-1978 or 1968 depending on the Cast date of block. A1145=are unique.Here's why.Flint plant sequenced CE blocks from 20001-49999.when these numbers were exhausted,they started back at 00001-89999,and preceded those numbers with the letter A to indicate late production. Rick  | 
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