I have a 2000 Pontiac Grand Prix GTP and have a problem with my front wheels. When I push on the wheel with my foot it move in at least 1/4 of an inch. I replaced the wheel hubs and I'm going to do the cv halfshafts next. But before I buy them i want to make sure that the halfshafts are at fault.

Would a bad cv halfshaft cause the wheel to move in and out or do I have a defective wheel hub? There is a grinding type noise while driving and vibration at higher speeds. No popping while turning. Brakes were just done so that's not the grinding.

Thanks for any input