Drivetrain trouble need help???

[freddy240sx]

When i pick up speed my car starts to shake and im hearing like a clunking sound under i think its my drive shaft but not sure and now when ever i shift i hear a loud pop sound any idea what might be the problem???

[PapaSmurf2k3]

moved to the 240 section.
Could be tires out of balance, drive shaft U-joints, carrier bearing, rear diff, or bushings (like subframe bushings)

[mixeds14]

check ur wheels, it sounds like the lug nuts could be loose..

[LoserCard]

Check your engine mounts. I had one engine mount completely break off and the whole left side of my engine was jumping when ever I shifted. Scary stuff!