Re: Rear Diff Plug HELP
 

See post #21.

Re: Rear Diff Plug HELP
 

Use the plug sold for that application. The housing is unlikely to have been modified.

Re: Rear Diff Plug HELP
 

Post #27 yes.

Are you a local model A chapter member?

Re: Rear Diff Plug HELP
 

Thanks for all the help.
Yes the plug removal process went smoothly, following y'all's advice. Attached are some final pics for those who have messaged and posted.

Yes I am in a club (a great one, with awesome resources), and I went to them first:
1) check with Ford Barn
2) email the MAFCA technical director
3) I am not sure
4) sounds like you got a great plan

I had a set of NPT taps. I ran them in and boom! no resistance and no chips. Threads were fine.
The Snyder's plug screwed right in with teflon tape.
No leaks after running her for about 10 miles.

Diastole in the Smokies

Re: Rear Diff Plug HELP
 

Good for you. I am a but surprised that one or two of them did not offer to come over and take a look and give you their experiences....

Re: Rear Diff Plug HELP
 

Are the plugs suppose to be painted black or not?

Re: Rear Diff Plug HELP
 

The Judging Standards say unfinished or raven.

Re: Rear Diff Plug HELP
 

Mine was screwed in so hard that almost nothing worked until I filed two edges off and it fit a hex ratchet with two good surfaces to get it out. Then bought a replacement from one of the usuals. Worked a charm. No idea why anyone would screw it in so tight except that...of course they all leak a few drops a week.