Ok, My 05 Spectra EX is shaky when going at speeds of 60 mph and so on. I thought it was the rear tires, the rear passenger tire was nearly a donut. I bought brand new tires last week, I was hoping it would eliminate the tremors. But it still exists. What is the problem with tremors? Could it be a wheel alignment? I need help. Thanks.

sounds like an alignment to me.. i went into a ditch this winter with my 07 spec. n i need an alignment.. burned through my tires like nothin.. :banghead:

Indeed, an alignment is where I would start as well. If that's not the problem, you may have some developing strut issues. I have heard of a couple guys on my other site having some strut issues so, could be that but, start with the alignment and go from there.