My 2018 JL has developed so much play that it is becoming dangerous at high speed, and a pain to drive with some level of precision, there is a dead zone when turning the steering wheel, (already aligned and balanced, new trackbar, also tight a bit the steering box adjustment, checked joints etc), so doing some research online... oh surprise, I find this:
I found the TSB pdf online, went to Jeep (my car is still on extended warranty), complained about the play and after some "pushing" they confirmed my car is affected by the TSB and they will order the steel steering box and install it.
Hopefully done by next week!
FYI!
Regards!