I dunno. I think 30k for aftermarket BJs is really good considering what we put them through. I have been giving the ones on my 200 hell for a while now and have had no issues. I’ve had some hits that sheared off the alignment tabs on the lower control arms but no BJ problems yet. (I torque the BJs to 200 ft-lbs) It would be understandable if I did though and I would not be upset considering what I’ve put them through.
I agree with @abuck99 . We have to expect and plan for compromises with aftermarket components. The fact that they are so easy to change goes along ways with me.
In my case, that's ~30k since install. They've been making noise and have failed to hold their position for at least 8-9 months. That's probably ~10-15k miles for me. So maybe more like ~15k before there were issues. I thought the noises I was hearing were sliders creaking, but managed to rule that out. Everything else under the truck is new. I wouldn't have even considered the BJs had failed in ~30K miles until @Wermz mentioned this week that they were getting toasty.
Eh. I still think it's kind of a disappointing product. Had I known when I bought them what I do now, I would have gone elsewhere for UCAs.