Transmission CASES

[Roadster62]

Are all Model A Ford transmission cases the same or did they change from 28-31? Just wondering if the AR Multi Disk clutch cars had a special one?

 

[Rowdy]

4 different variations I can think of right off the top of my head. The very early case had a larger hole for the reverse idler collar, along with no holes for a front bearing retainer. Next the regular sized hole for the reverse idler shaft. Next progression was holes for the front bearing retainer bolts were added. The next change was a groove for the use of a locking ring in the front and rear bearings. I am thinking there was another change at some point, but can not remember what it was. I beleive Jim Mason's website has the changes pictured. Rod

 

[wrndln]

I believe there were two cases use on model A's that are interchangeable. The multi-disc system used for early 28's used the early style case. The only difference I know of between the earlier style cases (28 through part of 1929) is the bosses for the ball bearings on the input and output shafts were machined with a lip for the bearing stops in the early style cases and the later style used snap rings for the bearing stops. Both cases look the same from the outside.

 

[Purdy Swoft]

The early cases used a spacer washer at the rear or the cluster gear.

 

[Rowdy]

Very interesting Vince, and a super nice find. Maybe someday a shaft for it will surface. Rod

 

[barnstuf]

I also have a N.O.S. transmission case 46-7006. I acquired it many years ago in a buyout of parts from a Ford dealer. If anyone wants it I am open to offers.