The Carter pump as used on the Packard V8 is an easy rebuild - provided you follow the shop manual instructions and the casting is in relatively good condition. Yet, after all these years, the rubber parts in an NOS pump/kit will be fragile.
It seems that the heart of that Carter pump (that is, at least the diaphragm) could be found in later variants for other applications. When kits for the M2198S became scarce, I was able to use those for Carter pumps as found on some Studebaker V8s - into the 1960s.
Take a look at
this post in
AL's blog on his "1956 Clipper Hot Rod".
Talk of a Ford application came up in my
next post in that same thread. Yet, I don't recall if it was ever confirmed that this kit would work for our purposes.
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