abs and rear brake problems? Options

[eclipse_04a]

ok, well i just got my car back, and actually drove it for the first time. i had both front axles replaced, but now, I have a noise coming from my rear brakes (not sure what side) when im driving. how do i tell if I have a warped rotor or something? also, my abs light is on when ever im driving.....im going to take it back to the place where i had it worked on and see whats up, and if its their fault, make them fix it. any ideas what it is? its just like a noise where the rotor has a kink and only makes noise as the one spot comes around....or is something wrong with my ABS and is trying grab....and thats whats making the noise.....its a 95 gt manual....i hope you guys can help.

[eclipse_04a]

i didnt know i had it until i got the car back and the light was on....the car is new to me....i dont know much about it. i just bought a manual for it, but it hasnt come yet. you could be right, he had a set of brake pads in the back....so ill have to look into it when i get time. how does the brake pad wear indicator work? you can tell its rubbing harder when the the disc is turning, so it makes a noise very breifly everytime the disc rotates....im not sure how to explain to too well on here. if youve ever had warped rotor, its almost the same sound, without all the vibrations when you brake.