I am already looking at buying a FMS Aluminum Drive shaft, just want to make sure the old one is the problem. I've notice a popping/clunking noise when I accelerate in first or reverse, and now the popping is followed by a squeal that goes away around 2500rpm in first gear or by pressing the clutch pedal. Any Ideas?

But we'll see if it truly was the cause of the squeal when I get a fms unit