'55 T-bird distributor

[KULTULZ]

Examples of two differences between the '57/'59 Y-block distributors and the '59+ versions. There may be other/later versions but I haven't looked into it
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FYI - There were four design progressions on the 1957-1964 FYB DUAL ADVANCE DIST, the 1963-64 being the most desirable as it is easier to retrofit DS II.

 

[paul2748]

The gear is not the only difference. The 54's had a tang drive for the oil pump, the 55 and later have a hex drive.

Well, yes, I blew that off.
It would be correct to say either; The load-o-matic distributor is the same from the bowl up on '54-56 Y-blocks (in fact the only difference at all is the '54 has different camshaft mating gear), or, you could say; the mechanical advance distributors are all EXACTLY the same on all '57-64 Y-blocks (except the T-Bird has provision for mechanical tachometer).
The latter statement would have been more relevant for this thread.

 

[texkbc]

I have been using 1 of these for a couple years now. now issues. great price. I origianlly used an MSDS but it failed
https://www.carid.com/tsp/pro-series-ready-to-run-distributor-ford-big-block-v8-mpn-jm7706r.html