If you snaped an axle.. u'd know it!

like NorCal said.. probly a mount.. look around & see but if it makes more noise while the engine/tranny are under more of a load it's probly coz the sucker is flyin all over the place under u'r hood.. check it out.. also, if u ever hear wheel hop again.. LET OF THE GAS!

Wheel hop is extremly bad for a car.. upgrade your suspension!

& just a lil note.. something seems wrong if the nitrous is only taking .5 sec. off u'r 1/4 time.