I have a question and hoply someone can help me I have a 1992 olds cutlass superem s the person i got it off of changed the front rotors brakes and calibers when ever i drove it the brakes worked good but i when ever i back the car up the brake caliber shifts and hit off the rim

Welcome to AF!!

It sounds like you have a damaged rotor mount. Either the mounting bracket is bad or the caliper is broken or loose. I would check it immediately to make sure both bolts are tight and that they are in fact there. If it shifts there has to be a problem.

I got it fixed today after messing around with it... The guy i got it off of gave me the car and told me he didnt know when was wrong.. i started looking and he didnt put the bottom bracket bolt on and it was causing it to push out and hit the rim thanks for the reply