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Lug bolt shoulder angle
Wow... A couple of threads from me tonight. Anyone know the shoulder angle on our stock bolts? I had to step down to shorter ones with my new wheels after removing the spacers being used on the turbo twists. I picked up some with 60degree shoulders thinking they were correct. But after tightening them I see a distinct ring on the shoulder which makes me think the shoulder angle is less than 60 degrees on porsche wheels.
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