Yes indeed, quite normal. I forgot to mention how long it lasted for me on the scar post. I actually still get a little clunking, but it seems to be only when I shift my weight when standing in a certain way. Otherwise it happens way less than it used to.
Something else to keep in mind, you guys are not quite there yet, but after you start getting back to your active selves at several months post op, you may have an episode of "squeaking". It's actually not an audible squeak, but more of a light vibration when moving the hip, as if there is no lube. Not a very comforting feeling. This is quite common, its usually assumed to be caused by dehydration and maybe excessive use of the hip. There are triathletes that have never had it happen, so the excessive use scenario might not be very accurate. The reason I mention it, is that I would not have known about it, or how to deal with it, if I hadn't been on the forum. Anyway, lots of water and some rest and it goes away. I've had it once on each hip and the next day its gone.