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springerpete · 11-10-2020, 09:23 AM

Due to damage I had to replace the ring and pinion in my '29. Went from stock 3.78:1 to a 3.54:1. Did not change the speedometer gear. If my speedometer reads 40 mph what might be my actual speed ? Thanks, Bill

11-10-2020, 09:23 AM	#1
springerpete Senior Member Join Date: Jul 2012 Location: Central Maine Posts: 644	Rear axle ratio and car speed Due to damage I had to replace the ring and pinion in my '29. Went from stock 3.78:1 to a 3.54:1. Did not change the speedometer gear. If my speedometer reads 40 mph what might be my actual speed ? Thanks, Bill