Re: The 5.3 Blazer build
Eeks, I really wouldn't know for sure. But if I had to guess, I would say the bolt size was around 4mm, maybe 5mm. Might be easiest to make that SAE, it might be easier to get an insert for SAE threads, #10 or 1/4". If you can, measure the I.D. of the hole and see what they have that will fit in there.
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