I run both ARP's and 5th studs. I just added the 5th stud a month ago and my steering is perfect after a week of wheeling in Moab. I checked the knuckle studs after every trip and none of them have moved. Over the last 4 years, I'd check after every wheeling trip and I'd always have at least one loose. The 5th studs have helped out BIG time.
I bought my 5th stud kit from Longfield.
