Originally Posted by Mr.T

108K on mine and still good. 285-70/17 tires and stock wheels. My guess is that wheel offset and tire width/weight are large factors. Suggest checking play with a dial indicator like this per the service manual.

Originally Posted by Mr.T

I'm at 165K on the original ball joints now with 285-70/17 tires. Plenty of 4x4, washboard roads, even the trip to/from home is 1/2 mile unpaved. Doubt that off-road use has anything to do with wearing them out, unless they are at high speeds. My take-away is still the same: With large heavy tires and more offset, count-on replacing the ball joints early (and maybe often).

Has anyone put 100K miles (or close) on RareParts, DynaTrac, Synergy, or Teraflex ball joints? If anyone has with 35+ tires, they would probably last forever on mine...

Originally Posted by resharp001

It took a decent while, but I've started to see more negative comments and/or issues with TF. I know from past threads that BLK HOLE is out using the jeep with 37s, so the TF in that application are getting decent use. Also know there are folks like Sv_dude that can tell you his issues with TF. It's really a crapshoot. I think it's fair enough to say many of us have had issues with this or that brand. I really still can't think of anyone in the past ever complaining about RPs failing on them. The quality of Rare Parts seems to be the one constant over the years. Is that because less people run them due to price? Is it because that tiny 10%, or whatnot, load they split to the uppers is the silver bullet? Is it because some have failed but people don't want to admit defeat on that purchase? Who knows. I hope I never have to buy BJs again, but if I do it will be RP. The last axle swap I did landed me with a 2nd set of DTs, and rebuild kit for them if I ever need to do that again.....which I hope I don't have to use based on my first experience.