I can crack my right hip but I wouldn't recommend it to anyone else - it feels great at first but I think I may have done some permanent damage - I get long periods of low level pain in that hip now and find it difficult to lie flat comfortably.
PJ - are you sure you're cracking your hip and not your lower back? My hip was never very loud (compared to say, kunckles), more a dull thud.
That is why i would never crack my hip. Tried doing it how people explain it but it doesn't work but the potential damage you could be doing to yourself….and hips are so important.