I have this vibration that is most noticeable during acceleration or going up hill (& sometimes while coasting). I replaced both front cv axles due to torn inner boots, but the vibration is still there. I looked at the rear axles but they look ok. What else could it be?

 

BTW, I replaced the front axles at different times (4 months apart) the left front fixed the vibration for the 4 months so I replaced the right front when the vibration returned. Could the new right front axle be bad?

 

It's a high possibility if the vibration came back after putting the new one on.

 

thanks, I think I'll try to get a new axle...

 

So I installed another axle in the passenger side but still have the vibration. Is there a bearing or something on the drive shaft (propeller shaft?) That could be bad?

 

I swear i have the same exact problem. Mine occurs once i hit 3000 rpm. Once its near it my gas pedal vibrates and its soo annoying.