Essentially the same unit was used by Packard in 1954 and on many other makes of cars as well thru much of the 50s. The absence of info in the Packard shop manuals is because Packard didn't service these items, they were to be serviced by Trico stations. Ficken Wiper Service (an ex-Trico shop, right over in your neck of the woods, www.wiperman.com as I recall) offers rebuild service and perhaps the occasional individual part but not kits; at one time McVey (the Cadillac folks) also offered a rebuild service for the Trico pumps - they did mine some years back. As to "kits", they may have existed and might still be around but can't say I've seen any offered. Give Ficken a call, and check this:
http://www.wiperman.com/washservpage.html It's really a simple system once you study it, did you have a specific question?
PS - Ficken's service on the wiper motor is excellent! Folks are often surprised at how superbly vacuum wipers function.
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