i have a arb in the back of my 68 cj5 it started poping when i turn like it was turned on. anybody got an idea what might be going on? the switch is off and there is no air in the line. will arb work on it if i send it to them? or anybody in the bay area or sac?

did you jack up a tire and see if it really is locked?

did you pull the diff cover and see whats goin on inside?