The following have now been added to the
Factory Service Index:
General Service Letters
General Service Bulletins
Packard Chicago Service Bulletins
Packard Phillidelpia Service Bulletins
So that about does it for now. I am sure more things can be added and extra cross-referencing done, but what is in there now should represent the bulk of it.
I have never seen this updated (1953) procedure for resetting the pinion pre-load before today. This procedure came from the Philly Service Letters.
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