Resonance

My wifes 06 DSG car has developed a resonant vibration around 1800 RPM and then at 3500 or 3600. I found the dog bone bolt into the transmission had backed out 1/4 inch. Cleaned and loctited it back in. Vibration is still there. Recently changed both front axles. Can motor mounts do this? Any suggestions please.

Not usually mounts. Aftermarket axels are a question for sure. Not much help, good luck

Thank you

Thank you Craig 01B. Will swap the shafts out with old ones. was not vibrating before axle change. might be coincidence.