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Re: qa1 ball joints,, explain what they do please
Just got my qa1 ball joints in the mail yesterday. They say race only applications an so far on their site or on summit it says this nowhere or has a single mention of it :/ so that's concern one. It also says on their paper to adjust preload and rebuild every 2000-2600 laps. Are these things made out of dough then?
What does adjustable preload mean and do as well?
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