ok so i was driving and it seems that as im driving over little bumps and what not in the road, i hear a weird what sounds like a poping noise, i had someone sit on my fenders to see if it might have had something to do with the struts but didnt hear anything, so im guessin its only when im driving, any answers as to what it might be would be greatly appreciated

 

axles cv joints going bad????

 

i replaced them last year, would they go bad that soon?