I noted a drop off in quality in some of OEM AC/Delco parts (purchased from the dealer) that were made in China vs. their older counterparts made in Mexico. These were upper strut mounts for my Tahoe - the Mexican made ones were absolutely quiet during winter in Canada, whereas the Chinese ones would make all sorts of noises in winter but were fine during summer.
Pros: quiet during summer
Cons: noises in winter
Vehicle:
Chevrolet Tahoe
