Hi everyone! So, I just replaced front pads and rotors, and rear shoes and drums with AcDelco DuraStop parts. Fronts went fine, however, one of the rear drums was stamped wrong around the hub, so that was warrantied, and the replacement was installed tonight. However, I'm still getting a pulsation, that feels like its from the rear. I pull the e-brake slightly at about 50, and I can feel it in the handle and in the rear of the vehicle. But, at times, I think it's still coming from the front!

When you first start pressing the pedal, you can feel the pulsation, and once the pedal goes down a little, you can still feel something in the pedal. Around town, about 35 and above you can feel it too, as well as on the highway. Starting to be at a loss with this one. Any input anyone?

Someone said it could possibly be a bent axle shaft? I only feel it when on the brakes though, wouldn't I feel the bent shaft all the time?

 

According to the owner's manual, something as simple as the sequence used to torgue down the front wheels can cause this problem. My "new" 2003 tracker had pulsating brakes when I first bought it. The previous owner had just replaced the front brake pads & rotors, so that's what I thought might be the problem. I had new tires installed at the Chevy dealer, and after that, no more pulsing! Apparently the wheels were properly torqued down at the dealer when the tires were replaced. You may also want to have your rotors resurfaced if re-torquing doesn't alleviate the pulsing problem.