The Ford Barn - View Single Post - Ruckstell axle...underdrive or overdrive?

stevests · 12-30-2023, 11:08 AM

Not necessarily - the gears could be 13-39 for a 3-1 gear set. A 40 could use either 11 or a 12 tooth pinion.

The numbers on the patent plate is the serial number.

12-30-2023, 11:08 AM	#8
stevests Senior Member Join Date: May 2010 Location: Longbranch, Washington Posts: 629	Re: Ruckstell axle...underdrive or overdrive? Not necessarily - the gears could be 13-39 for a 3-1 gear set. A 40 could use either 11 or a 12 tooth pinion. The numbers on the patent plate is the serial number.