Who makes quality lower ball joints?
No one. The cups are all plastic now verses the metal on the older USA made style. That is why I saved every old ball joint on every car if they were tight.
Take the boot off and look at the cup. most all are plastic. Yes even the new made with china parts assembled in USA moog.
Getting a metal banded boot and a grease fitting is rare on suspension parts. Good parts are out there you just have to hunt them as you are. I found some NAPA stores with old stock having them. Like I said look first. Plastic style work , Just don't last on the North East USA pot hole roads.
Reminds me of a road trip we just made to Nashville . Route 81 was being repaved . the second coat was not done so every bridge felt like hitting a curb. By the time we got home the new suspension parts were waisted as was the steering box. The OEM joints were in there for years. So we just install these in this truck . Plastic Cups. Thank god we made the cost up on how cheap the equipment was.
It was 3 in the morning and I was watching my son trying to stay on the road. I said your falling asleep let me drive . Wow I don't know how the hell he was doing 80 mph. I was whipping the wheel back and forth doing 60 while he was snoring away.