Re: 1939 differential leak

Posted by DavidPackard On 2023/5/23 22:00:42

DrMorbius;

This is a reoccurring forum subject. I suggest you use the Advanced Search feature and use 'pinion seal' as the criteria and restrict the search to the forums only.

One of those search 'hits' will be a step by step procedure I wrote in response to a question much like yours, see:https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=18059&forum=2&post_id=179582#forumpost179582

As long as the rearend is healthy there is really no intrigue in changing the seal. It does require a good amount of care returning the pinion bearing preload to the same value that you started with, but it has been done many times.

Later shop manuals and service documents will have a lot more content than the '39 versions. You might read a few of those documents.

There was another posting on the same subject where the question was "How big of an impact wrench should I use?" The answer was "Avoid the use of impact equipment when changing the pinion seal."

dp