Go Back   The Ford Barn > To The Editors > Questions & Suggestions

Sponsored Links (Register now to hide all advertisements)

Thread Tools Display Modes
Old 06-06-2019, 05:31 PM   #1
Junior Member
Join Date: Jun 2019
Location: Texas
Posts: 2
Default Model A Rear Differential Plug

I recently acquired a Model A and am working my way around the car, changing the oils and greases, and lubing the zerk fitting. While trying to check the fluid level in the rear differential, I could not find a socket/plug that fits into the plug to loosen it. Is there a special tool? I tried my 3/8 and 1/2 square fitting and they would not go it. It appears this might be a 7/16 plug. Is that right? Any ideas on getting that plug out? Thanks for helping.
RodgerC is offline   Reply With Quote
Old 06-06-2019, 09:05 PM   #2
Joe K
Senior Member
Joe K's Avatar
Join Date: Jul 2010
Location: Cow Hampshire
Posts: 3,376
Default Re: Model A Rear Differential Plug

Probably the best tool you could use would be a socket extension for a 1/2" socket set upon which you grind down the male square end to fit your 7/16 (or whatever it is) differential drain/fill plugs.

I was young once - rather than "ruin" (in my eyes then) a perfectly good tool I had a piece of square scrap metal upon which I resolved to use a pair of vice-grips for leverage. Grinding it down as I described above, I found the sparks "thready" and quite brilliant in nature - I had chosen a piece of TOOL STEEL to make my dedicated tool. A positive case of technical undersight and capability overkill on my material selection.

Today I would use one of the Kobalt, Craftman or Husky socket extensions. All available from the "Big box" stores. Probably the shortest you can buy because reach is not the issue - rather cost is - and shorter is cheaper.

After a while of dealing with a Model A you learn that certain tools are "unique" to the beast, and you're wise to start developing and keeping these tools.

And, while one can be tempted to duct-tape and bailing wire a functional tool together from bits and pieces - one should always remember "The best tools are none too good" and that better IS better for a reason. And you deserve it to yourself - and to service your car in the best manner possible.

I take pleasure in my tools. In a way they are a measure of my own capability, as well as adding TO that capability. I hope you do too.

Welcome to the Model A Club. Won't you join us upstairs in the "General Discussion" Board? No question too small or answer too long upstairs.

Joe K
Shudda kept the horse.

Last edited by Joe K; 06-06-2019 at 09:12 PM.
Joe K is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)

All times are GMT -5. The time now is 07:34 PM.