Hoping I could get some help. I have an 06 coupe auto and when I go over 60mph and accelerate I get mild vibration felt through the floor and a low hum coming from what I think is the rear end. It gets louder and more intense with vehicle speed but is only felt and heard when accelerating. If I let off the accelerator or keep it under 60mph the sound and vibration goes away. Any ideas? I suspected the wheel bearings but haven’t had any play or resistance in them when checking. Maybe something in the driveshaft?

 

Anyone?

 

Vibrations are a b!tch to figure out. Does it make a difference what gear u are in?

 

Yea I know they’re the worst! It does not make a difference (I’m auto btw) I’m going to check inner cv joints and wheel bearing again this weekend.

 

It’s only first thing in the morning. If I hit the highway first 60mph vibrates rear end. It is gone after that for some reason. I suspect a rear hub or cv axle is to blame. I’ve been thinking about upgrading the rear axles anyway to the 370 set up with new hub assembly’s.