00 black ss

iTrader: (9)

so i just started noticing my car makes really loud vibrations/noises from around 3000rpms and up. it mostly does it not all the time but id say 95 percent of the time. it sounds like its coming from the pulleys or maybe the tranny mount/shifter not to sure. anyone have this problem?

00 black ss

iTrader: (9)

I'm really starting to think its coming from the pulleys. Do u think it culd be a not tight underdrive pulley?