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| RX-7 1st Gen Specific (1979-85) RX-7 1979-85 Discussion including performance modifications and technical support sections | 
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|  10-27-2010, 04:18 PM | #1 | |
| Custom User Title Join Date: Feb 2008 Location: Seattle, WA / Pullman, WA 
					Posts: 350
				Rep Power: 18  | 
			
			The only difference between a "12A clutch setup" and a "13B clutch setup" is the weight of the stock flywheel. '83+ (12A and NA 13B) uses a 225mm clutch disc and pressure plate, whereas up to '82 used 215mm, but the parts are interchangeable (you can use 225mm clutch components on an early flywheel or vice-versa).
		 
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