i dont know where to put this- my dad was doing some light/med offroading in his jeep GC(i know- im trying to convert him to ford) and when he got back on the road, everytime you turn the wheel, there is a pop in the suspension- do you know whats going on?

Did he take it out of 4wd before he got onto the road?

he usually takes it out on the gravel road leading from our farm to the main road- but he does put it into 4wd at around 30-45 mph on the main road before he gets to the farm- could that be it?