Hey brother, I see you posted a thread back in 2010 about your 4Runner having a catching feeling when you hit the gas. Also you have random vibrations at highway speeds. My vibrations on the highway are so bad it shakes the whole car and I have to either let off the gas or hit the accelerator for the tranny to shift to get it to go away. You said you lubed the slip yolk and it went away? Is it still gone? I lubed my slip yolk and it went away for about 2 miles and then it was right back. I just wanted ot check in and see if it had come back or you found it was something else.

I suspect it may be a combination of bad rear bearings and a pinion bearing.