I have a 87 grand prix that it seams the front clip is saging down from what i believe us either factory or the body mounts are to compressed,i need to know how to loosen the front clip so i can use jack to bring where i want it and shim it so .body lines line up again for paint,ive already broke loose the two in the door jam the radiator body mount and one up bu the hood hinge that came off the firewall,is there anyotheres that im not seeing ,i expected to see some movement by now .