That's all well and good, but with the crappy quality of today's Chinese parts, the expense and hassle of returning just isn't worth it to me.. When I leave the parts house with my parts, I'm pretty much assured the parts will fit.. Not only that, I'd rather keep the money flowing within my state and community than to have it wind up in the cash register of some foreign country..
Here's a good example.. Just last week, one of the headlight adjustment mechanisms failed on my 35 year old square body.. I decided to replace all 8 of them.. At 2 to a package all 8 cost me about $12.00 at the local independent parts house about 2 miles from my house. As I was re-adjusting one of the lights, one of the new adjusters failed, threads in the plastic part stripped out.. 30 minutes later, I had the replacement installed and the truck was back in the garage.... I'll leave it to you to figure how long the wait would be (including time to conclude the "warranty replacement process", to have fully functioning headlights..
Don't bother trying to change my mind.. You'd have better success at using a baseball bat to revive a dead horse.. lol...