Mark
Ford could change the a part number several ways.
The year code could change - C3 = 1963, C5 = 1965, C8 = 1968.
Generally a year code change means the part was updated somehow but I'm
can't say for sure.
Many Ford parts had the year code change for the 6 bolt engine change over.
The 3rd digit is the division where the part was first designed - A = full
size Ford, O = Fairlane, T = Truck, Z = Mustang
This digit can easily change.
The body of the number for any part will not change - 7515 = clutch fork all
across Ford.
The last letter in the number is the revision level - A,B,C to Z.
The correct Ford Parts Manual will show if an older part has been updated to
a newer part number.
This is similar to the Rootes Parts List that show superseded part numbers.
I believe David Franchi has that kind of Manual and it is not showing a
direct replacement part for the Tiger Clutch fork.
Ron Fraser
-----Original Message-----
From: CoolVT@aol.com [mailto:CoolVT@aol.com]
Sent: Sunday, March 17, 2013 8:19 PM
To: rfraser@bluefrog.com; wwwdg@webtv.net; johnp@ciseast.com
Cc: john.procida@gmail.com; tigers@autox.team.net
Subject: Re: [Tigers] Clutch fork.... Still....
Ron,
I don't have a manual handy, but maybe you can explain the reason behind a
single change in digits of a Ford part number. I know, for example, that
one digit represents the application of the part. As I understand it, if a
part is changed the number will change, but the new part might still work on
the old application.
In the list that Dave presented, one or two of the part #'s changed by one
digit. Could we have something similar with the Tiger clutch fork. In other
words, is a there a number that is close that will work on the Tiger.
Mark L
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