I had a ranger adapters on the front and drove the crap out of it and never had a problem at all. Also have a friend who has them on his F150 he has a mild lift and some wide 33s and he makes a trip from KY to ga and back every weekend so im pretty convinced there safe if properly installed we just put some locktite on it,it may be a pain to get off later but better to have a little trouble gettin them off than to have to chase a wheel down the hwy...Usally you mostly hear the bad before the good about anything