I get a little vibration when I accelerate but it does not happen all the time. I think it is mainly when I have the steering turned or I have a have load. It is coming from the drive train I think. U joins maybe?
2006
Ford 150 4x4
Extra cab

 

Possibly u-joints, possibly limited slip differential shudder.

 

How would I trouble shoot that? I looked at it sunday U-joins look good no play in them. I thought I would change the rear end oil next? The vibration when I accelerate is just from a dead stop only for now.

2006
Ford 150 4x4
Extra cab

 

Probably just limited slip shudder. My friend's '03 does it and never did anything with it and has had no problems in the 6+ yrs that he has had it. Mine does it a bit too.

 

Thanks, I think it is a Limited Slip Shudder

 

My Harley started doing that around 65k swapped the fluid in the dif and it never did it again

 

Ive also heard of greasing the slip yoke on the front as a solution to this.

 

thanks