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Rev · 07-05-2005, 10:42 AM

355/308 x 20 = 23. The 23 tooth speedo gear should be be correct. Can't see why it would wear faster.The 20 tooth would read about 15% too fast on the speedo with the 355's.

Rev

07-05-2005, 10:42 AM	#2
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: gears from 308s to 355s 355/308 x 20 = 23. The 23 tooth speedo gear should be be correct. Can't see why it would wear faster.The 20 tooth would read about 15% too fast on the speedo with the 355's. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe