No pulsation but I have a shimmy in the 70's, it might be unbalanced rotors, acts like an alignment issue. I was several cars behind you last Sunday, but the brake sequel is bad as they warm up, another reason I am thinking it could be the rotors. I have seen several threads with others saying they replaced their rotors and the shimmy went away. I figure it should be cheap to have the rotors checked. I put on ceramic pads last year to cut down the dust but I am yanking them as I haven't been able to get them to stop the squealing, lubed them a couple times but no difference. Even with the original pads, the breaks would sequel at times. I have read GM has installed crappy rotors before but I don't want to upgrade to a new brake system yet unless I have to.
Since I will have the tires/wheel off, I will check all of the nuts I can reach to verify everything is tight. Changed the tires and wheel and did an alignment, but the shimmy persists. It isn't RPM related so I am hoping I find the suspension issue, several things to check.
I was wondering if a hub was going but after the ride Sunday I am beginning to think the hubs are ok.
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