A guy that has the cover off, has a good drill bit and tap, and doesn't have a large washer and grinder might think this is the quickest option! I don't see a problem with it. I'd just be worried about oil weeping out over time, and some nasty galvanic corrosion.
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Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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