Trans mount wear

I'm not to sure if there's worn mount spec's. However, total play of .5 seems alittle much to me. I would think your engine's torque would move this even more then a screwdriver. If you have a engine/trans vibration (not moving) or a vibration that increases/decreases with RPM, it's quite possible it's time to replace. (fluids brake them down quickly) and they begin to soften up. :)