Perplexed by vibration

2011 tundra 250,000 miles, consistent vibration that I feel in my steering wheel and in my consul and in the rear of the truck. Suspension new upper lower control, arms, new CV axles new carrier bearing new tires. Thought it might be in the tires. Got a whole brand new set the same vibration. There’s also an oscillating noise around 30 mph and up that I believe is in my front differential, as I can put it in four-wheel-drive and the oscillating noise stops. But I still have constant vibrations. Perplexed. Ready to drop $4000 for front and rear differential without exploring further options. Thanks and advance.

 

Is it a vibration or shimmy in the steering wheel? I had a shimmy that was due to tires not balanced properly and bad/warped rotors. Changed the rotors and had my tires road force balanced and it went away.

Make sure your lug nuts are properly torqued too.

Also search for front diff growl for the needle bearing fix. ECGS sells a bushing. It’s a lot cheaper than Toyotas solution of replacing your entire front diff.

 

Definitely vibration as my hands go numb. New Toyota rotors and pads.

 

I’d make sure everything is torqued properly and take the tires to get rebalanced first. That should be the cheapest or free check you can do before you start going down other paths and possibly throwing money at it.

 

In regards to the needle bearing fix, the osocillating (whohhmp, whohhmp, whohhmp) stops when I engage the 4wd. Could the needle bearing still be the issue? I'm due to have my tires rotated and balanced this week and will make sure all things are done correctly as I know the shop mgr.

TIA

 

Yep, that’s exactly it. There is a TSB out there somewhere that will explain it all. I think Toyota called it a front diff growl.

Edit: here is the TSB. It was published in 08, but my 2010 had the same exact issue.

https://eastcoastgearsupply.com/files/PDF Files/tsb-0121-08-t9r-front-diff-growl.pdf

 

This suggestion comes from a friend who had a "constant" vibration in his Tacoma. The steering column flex joint was was worn out - the j-joint that connects the steering column shaft to the steering box. FWIW