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alanwoodieman · 01-15-2020, 08:40 PM

did that not too long ago. what gears are you going to use? remember the splines on the drive shaft and the pinion are different requiring an adapter. we bored out and installed a drive shaft coupling into the original hollow 36 drive shaft. since we still have the 21 stud engine we went from 4:11 to 3:78--we talked about a 3:54 but decided against it because we have hills and the owner really did not want to go that fast anyway!

01-15-2020, 08:40 PM	#2
alanwoodieman Senior Member Join Date: May 2010 Location: upstate SC Posts: 2,973	Re: 1936 ford diff gear change did that not too long ago. what gears are you going to use? remember the splines on the drive shaft and the pinion are different requiring an adapter. we bored out and installed a drive shaft coupling into the original hollow 36 drive shaft. since we still have the 21 stud engine we went from 4:11 to 3:78--we talked about a 3:54 but decided against it because we have hills and the owner really did not want to go that fast anyway!