Forum Discussion
CharlesinGA
Apr 26, 2019Explorer
All the fill plugs I've seen with square drives are 3/8 inch. Would need to be a mighty big plug to take a ½ inch square drive.
I have a way of getting those plugs out. In the heavy aircraft industry, we have a tool called a "screw knocker" (some people call them and "old man" for some reason) and this has a 3/8 square drive on it, a handle, and a .401 parker taper that fits in a 4x rivet gun. The rivet gun vibrates it, helping to break it loose, but mostly it holds the square drive in the plug (or phillips screw head when removing screws on an aircraft). You turn it with the handle.
If you google differential cover identification and then select images, you get all kinds of charts with pics of differential covers made for the purpose of ID'ing rear ends.
Charles
I have a way of getting those plugs out. In the heavy aircraft industry, we have a tool called a "screw knocker" (some people call them and "old man" for some reason) and this has a 3/8 square drive on it, a handle, and a .401 parker taper that fits in a 4x rivet gun. The rivet gun vibrates it, helping to break it loose, but mostly it holds the square drive in the plug (or phillips screw head when removing screws on an aircraft). You turn it with the handle.
If you google differential cover identification and then select images, you get all kinds of charts with pics of differential covers made for the purpose of ID'ing rear ends.
Charles
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