I have an annoying clunk when I start my engine, when I brake. Doesn't do it all the time, but most of the time. Also happens sometimes when I am starting to accelerate. So I took the wheel off and seen where it's doing it. The hub and or the rotor studs are moving in their respected holes, cluncking against my hub? It's hard to describe. Both of my front hubs have been replaced with OEM hubs a few years ago. I first started noticing this about a month ago. My front lower engine mount was bad, replaced that thinking it had something to do with this. Well, my engine is sitting stable with new mount but hubs are still hitting my lug nut studs. Beats me, we've never seen anything like this...A friend suggested installing spacers on the studs because they are bottoming out causing this noise...I always torque to 100 ft pounds..
Hope all this make sense! It sure don't to us.....