Blown TC rod bushings causing misalignment?

[thelinja]

I had an alignment done in June. A few weeks later, my front tires were starting to sound sound like they were wearing funny. They don't look it yet, but I can hear it. I rotated them to the rear and the tire noise stopped, but now it's back again. The strange thing is that it isn't consistant, sometimes I can hear it clearly, and sometimes I hear nothing. My front end is in check but I'm not so sure about my TC rod bushings. They are starting to crack and dry rot. I cannot tell if they have burst though. I know PDM sells the TC rods w/ bushings. Would it be best to just order new rods? Or just new bushings? Or is this diagnosis even a possibilty?
You guys know what tire noise I'm talking about, right? The oscillating sound that varies with speed. Thanks.