Re: Off my rocker ! 350 GM
they could be aftermarket studs which could be longer than stock to accomodate roller rockers. But loose nuts could be a used nut getting in with the new ones. replace the nut, then replace the ball, nut and rocker, also look to see if you've wiped that lobe. By watching the rocker go up and down and comparing it to others and how far up and down they go.
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