Re: Bits of brass in a 32 900 differential

Posted by 32model901 On 2011/4/15 17:15:57

Tom,

Hope you don't mind borrowing your pictures. I didn't have a good shot of the rear.....let me re-phrase that.....I didn't have any good pictures of the differential, so I paid a visit to the Packard Paddock.

The cage on the rear pinion bearing looks like it could be the source of some of your pieces. Although the early gears oils attacked brass it is unusual to have one completely disintegrate.

If you do replace the bearings I previously submitted a post with a modern cross reference to some of the bearings used in the differential.

PM me if you have trouble finding it.

You may want to get some prussian blue at good auto store or art supply. NAPA carried this recently. If you've set up gear sets before you'll know what this is for.

If not you may want to do some research on the topic. The carrier may have a shim pack to set the pinion to ring gear mesh. I stamped some out of .002 to add to the ones that were there when I replaced the bearings and seals.

Regards,

Dave