bad vibrations at 55 mph

5 days into owning 2019 Off-road I really like it!!!
bad vibrations attributed to tires, balance, etc
wondering if anyone has solved it by having drive-train aligned or u-joints worked on
so many other 4R's with the same problem, and I sense people are going in circles having tires balanced and tires balanced and tires balanced!!!!!

 

Congrats on the new Toy.

Personally I've had zero problems with my tires regarding balance. From all the threads I've read, it seems to be just the luck of the draw. Contributing factors appear to be the tire brand, possibly after market rims? and who does the balance.

As far as drive train, I doubt that's your issue with such a new car. Plus the main drive shaft to the rear diff is one shaft unlike the extended cab Tacoma which utilizes a center carrier bearing and a two piece drive shaft.

I know from experience with my 97' Tacoma that if the carrier bearing is mis-aligned it will cause issues.

 

since it's a CPO purchase from dealer, I'll be interested to see if the service dept actually tries to solve it when I take it in in a few days -

because there are so many forums with so many postings about vibration at 55-60 mph I'm hoping to be better informed when I show up to have it evaluated so I can avoid a shoulder shrug and instead get a solution - maybe I'll hit the jackpot and it WILL be out of balance and nothing more complicated -

and I also wonder if the CPO 160-point check list included the dealer driving it, and how it was missed, because you can't miss these vibes

 

It should still be under warranty. If you're dealership installed the tires and wheels, they can correct the problem.

 

These 4Runners seem to be sensitive to out of balance tires. I did experience a 55-60 MPG wobble with the original tires. I haven't had any issues since then, except when I've had a gob of mud or snow stuck in a wheel, or lost balancing weights somehow.

I have also found that some tire techs just can't seem to balance heavier tires properly. A chain rebalanced mine once and they wobbled. I had my off-road shop rebalance them a week later and no more wobble.

 

I had this 55-60mph wobble with my 2013 FJ Cruiser TT Edition because the Heavy BFG Tires it came with were E rated tires and they probably should have been C or D Rated for the weight of the FJ, plus they wanted to put a minimum of 46 PSI in them, because they were E-Rated. Switching to a C Rated Tire at 38 PSI fixed the problem. Toyota explained the dampening spring in the FJ steering was not strong enough.