Help with control arms

I own a 2003 Galant GTZ. My rear lower control arms are squeaking when I go over bumps and I need to change them. I am just not sure which ones I should buy as I have done some research and found that the the rear lower control arms for other 2003 galant models are not the same as the GTZ. I am looking for the best place to buy them online and am currently considering ebay. I am not sure which brands are good. Any help would be appreciated. Thanks.

rockauto.com they have quality stuff, ebay is mostly cheaply made junk now-a-days.

5% Discount Code: F735655CEAF764 Expires: 07/04/2014 enter this code in the 'How Did You Hear about Us' box to receive discount