Well I finaly got my fronts replaced with powerslots and now it feals like the rears are warped is this possibe? It shakes when I brake at high speeds (over 65) but it is not the same feeling as when the fronts warped, the stearing wheel does not shake as much. The wheels are not the problem as I just put new rims and tires on. Where can I get back brakes for cheap?

BTW when I put the fronts on I just have cheap pads will that be a problem down the road?

First of all, get a good alignment, as this can cause some shaking problems, although not real likely. I also would hope they balanced your new wheels too. If the fronts are new, then yes, it is very possible to have the rotors warped in the rear. You should be able to kind of feel it shaking in the rear end, not the front or in the steering wheel. I do belive the rear rotors are thinner too, which makes them even more prone to warping. Also, i personally wouldn't use cheap pads, or any brake parts for that matter. When it comes to braking, i would rather spend more money on some good stuff then taking chances with stopping safety, esp at highway speeds. Rotors should be turned too when using new pads, to make sure the two materials wear in properly.

Regular cheap pads will probably wear really fast due to the slots in the rotor. The slots keep the pad surface clean(stops glazing) and free of brake dust which is like shaving the pad, so to speak. That's why performance friction pads are recommended.