[quote=flu][quote=Blogstar]I’d exhaust all options for getting the bolts out without messing with the female threads. You might have removed some material with the bolt extraction so the head might be too weak for the slot and screwdriver suggestion?
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That’s what I’m worried about….

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I have gotten away with pounding a smaller socket or wrench on the bolt head once or twice in my life too. Easier on larger bolts.[/quote]

You mean on the outside, right? (I tried pounding in a bigger hex and torx socket and that didn’t work)
The thing I hate about these bolts is they are perfectly round. So I’m wondering if that would work…The other thing, I don’t have much room to work a socket in between the bolt and the shaft bolt in the center.[/quote]

I would try with the star pattern type socket over the outside of the round bolt, but you might bend the pulley shaft if you hit it too hard. $75 to the mechanic is sounding pretty good!