I have a 2001 base PT Cruiser that the oil pan oil plug bolt threads are stripped. I have also noticed the oil pan gasket looks like it is leaking. I think I will tackle replacing the oil pan. So I have three questions. Are the non-OEM replacement oil pans that are offered as good as the Mopar one? Also are the oil pan gaskets prone to leaking and need replacing? My last question is how big of a job is this? Thanks!!