i took a look at the autozone website, i searched for "wheel hub" and all it came back was ones for the front, by looking at pic of one it looks painfully easy, just 3 bolts and a sensor clip??

also 2 more questions. both my abs light and trac off light are lit, and neither systems work. does that mean its definetely one of the front ones or could it still be a rear? and also, can anyone comment on ebay wheel hubs??? they're about half the price of autozone ones and i know you get what you pay for, but sometimes good deals do come along....... so i was just wondering if anyone had any experience with those....