I went to the mechanic today and asked for the change of the timing belt. He said that belt doesnt have to be changed but he mentioned about timing belt kit which includes some wheels and water pump . Since my camry has over 100k on it he recommended it would be changed. For the whole thing he asked 600$. From checking the parts online I would guess that whole kit would cost 250$ . What are your thoughts? My brother in law takes his car to this guy and he say that the guy is real. M'I missing something if it comes to these kits??? Thanks