Well I decided today was the day. I have been meaning to convert my main N64 into being region Free. I have had the plastic piece to do the trick since last year sometime.
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Making sure I have everything to begin the transition.
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Off with the old original.....
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On with the new region Free.......
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The nubs above those holes matched the game cart that they wanted you to use with this console.
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Works great!!
I wasn't thinking when I ordered the part. I should have ordered the milky clear-ish part, but, it really looks okay. A non issue with me now that it is done. The new part does not have any nubs to restrict what carts you can use with the console. It gives me the freedom to use only one console and not have to switch back and forth.