Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. | 
	
		
			
  | 
	|||||||
| Register | Album Gallery | Thread Gallery | FAQ | Community | Calendar | Become a Paid Member | Today's Posts | Search | 
| 
		 | 
	Thread Tools | Display Modes | 
| 
		 
			 
			#1  
			
			
			
			
			
		 
		
	 | 
||||
		
		
  | 
||||
| 
		
	
		
		
			
			 
			
			When rebuilding my 68 Z/28 BV 12 bolt I put a set of 4.88’s in it just for fun. Now I have the transmission apart to freshen up and want to make the speedometer correct. I did all the math to figure out the two gears and adapter I need, but can’t find my notes.  
		
		
		
			Anyone have the quick answer on the drive and driven gear I need to find? Stock tire size. Thanks, Bill Last edited by SMS; 02-08-2020 at 01:09 AM.  | 
		
  | 
	
		
  |