Early 32 Ford Differential.

[Gordon Ellis]

My 32 Ford has an 'early' rear end. The pinion bolts onto the cone shaped end of the driveshaft and is keyed, not splined. The crown has 34 teeth and the pinion 9 teeth making it a standard 3.78:1 ratio. Mac's catalog shows 32 pinions as splined. I have decided that my early rear end is essentially a late Model A rear end, except that the 32 has 4 spiders, not 3 like the model A. Any comments or clarification on this would be veryu much appreciated.

 

[john in illinois]

Yes I rebuilt a 32 early model B and used model A gears and bearings. I found it very dificult to remove the pinion. You will need a good puller and a good thread protector for thr driveshaft.
I took the pinion out of the banjo first snd then pulled it off the driveshaft.

Hot Rod Works lists model A for 32 also.

https://www.hotrodworks.com/product/new-1928-1932-ford-ring-and-pinion-3-541/

John

 

[DavidG]

Something is amiss as the B-prefix axle originally had three spider gears and the 18-prefix axle had four and you cannot just switch from one to another without having other major components needing to be changed.