I know this is an old tread but is there any info out there on what is different about a standard TH400 and the HD CY/CW/CX trans. Wanting to build a HD CW trans and looking for help. 
Thanks in Advance
		 
		
		
		
		
		
		
			
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				Joseph Farrow 
1970 Chevelle L78 
1970 Chevelle LS6 
1972 Chevelle LS5 
			 
		
		
		
		
		
	
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