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RcT · 09-13-2011, 02:38 PM

I just saw this the other day on here... mark one of the rear tires with chalk at the 6 o'clock position; remove the spark plugs; put the car in third gear; hand crank the car, in gear, until the rear marked wheel makes one complete revolution back to 6 o'clock. Count the number of engine revolutions to do this and there's your gearing.

09-13-2011, 02:38 PM	#2
RcT Senior Member Join Date: May 2010 Posts: 451	Re: Rear Differential I just saw this the other day on here... mark one of the rear tires with chalk at the 6 o'clock position; remove the spark plugs; put the car in third gear; hand crank the car, in gear, until the rear marked wheel makes one complete revolution back to 6 o'clock. Count the number of engine revolutions to do this and there's your gearing.