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Hi brob00,
A earlier (pre 71) or later (73 on) will work, they are identical, both UNF threads. The conversion is quite easy, I did mine a few months ago.
Here are the parts you will need:
The plunger consists of 3 parts, the body, spring and the plunger, you will also want to order the sealing washer.
Part N°s Below:
Plunger Housing: 57-4400
Plunger Spring: 57-4459
Plunger: 57-7020
Sealing Washer: 57-3978
I hope this helps
Webby
Last edited by Webby : 11-12-2009 at 07:14 PM.
Reason: Part N°s
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