Vibration at highway speeds

hey guys im new to the forum. Has anyone a vibration at highway speeds on an 02 4runner?
178000 miles on it.

 

How are your ball bearings and tire rods looking?

 

really havent gotten that far into it but will check them out.
seems to be more in drive line. do factory u joints have grease fittings?

 

just to cover all the bases, you've had the wheels balanced and tires checked for being out of round, have you changed tires or rotated recently? Is the vibration constant or only when you let off the gas?

 

new tires on factory wheels appr 6000 miles ago. rotated once

 

Just a suggestion - edit your thread title a bit to include 'new vibration' or some such phrase...'help!' doesn't give prospective helpers much to go by. Or help anyone in the future searching for help with your issue...

 

Agreed... I immediately started singing the Beatles song...

 

lol. thanks bob. sorry guys

 

A little help, maybe? OK, my recently acquired '00 2x4 4runner v6 auto with 240k miles and absolutely no rust (gotta love FL cars) has developed a new vibration issue. at low speed, when accelerating and under 30, it almost feels like a dead miss, smooths out between 30 and 55 or so, then comes back worse between 55 and up when still accelerating. But anytime its vibrating, if i let off the gas it stops. When coasting, no vibration. And its in the seat, not the steering wheel (so no front end suspension/tire prob, I think) and not in the brake pedal (so no brake probs either, i think). No clunk when shifting into drive from park, but a bit of one when shifting from drive to reverse. The check engine light has been on for years (evap cannister, yeah, I know, on my list to get fixed, lol), but when this is happening the ck engine light starts flashing on and off. I helped maintain the vehicle for the last 10 yrs, as in offered advice when probs cropped up, and took to shop for probs when requested. I don't know that rear end lube level ever checked (at least I never specifically told the shop to do it, may have been ck'd as some regular inspection). Getting codes pulled this afternoon. Looking for options, opinions and best guesses. I'm betting drive shaft or rear end.