This is a typical 70 71 problem. The peened end of the cylinder wears freeing it from the engagement cam. You could remove the assembly and maybe epoxy it but usually we sell a new ignition lock and key to solve the problem and then rekey to the cars original.
QUOTE(ppetion @ Dec 4 2010, 10:24 PM)
The cylinder of my ingnition switch came out with my key. anyway to repair that or do i need a new one?