The Ford Barn

Del in NE Ohio · 08-26-2015, 12:02 PM

Went this AM to help a friend who had just removed engine and transmission from a '31 pickup. We plan to dive into the rear axle assembly tomorrow. As we discussed possibly changing the ring and pinion for a higher ratio, we decided to try to determine what rear end ratio is in the truck. So, we jacked up the truck. A complete 360 degree revolution of the rear wheel resulted in slightly less than 2 revolutions of the drive shaft. Seemed odd, so we did it again. What do we have here?

Been on meds lately, so I am reluctant to do the math. Seems like a really high rear end ratio, or am I still in a pharmaceutical fog?

08-26-2015, 12:02 PM	#1
Del in NE Ohio Senior Member Join Date: May 2010 Location: Columbiana,OH Posts: 467	Hi speed aftermarket rear end? Went this AM to help a friend who had just removed engine and transmission from a '31 pickup. We plan to dive into the rear axle assembly tomorrow. As we discussed possibly changing the ring and pinion for a higher ratio, we decided to try to determine what rear end ratio is in the truck. So, we jacked up the truck. A complete 360 degree revolution of the rear wheel resulted in slightly less than 2 revolutions of the drive shaft. Seemed odd, so we did it again. What do we have here? Been on meds lately, so I am reluctant to do the math. Seems like a really high rear end ratio, or am I still in a pharmaceutical fog?