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RodgerC · 06-06-2019, 05:31 PM

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.

06-06-2019, 05:31 PM	#1
RodgerC Junior Member Join Date: Jun 2019 Location: Texas Posts: 2	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.