Vibration at 40 mph

Hello, I have a 2013 Tacoma and I’m getting vibrations only at 40mph. I took it to the shop and couldn’t figure out why it’s shaking. My rear tires were worn on the outsides so I decided to start there and get new tires. I got new tires and still have the vibration. The wheels have been balanced and they did an alignment. Has anyone had this problem and found a solution? TIA

 

You didn't say how many miles on your rig, but I'm dealing with same issue. If it goes away when you switch to 4wd, it's probably the needle bearing on the driver's side of the front diff. I'm just gonna deal with it till spring...too cold to change it out now lol.

 

Sorry, I just hit 100k miles. I will test that out and see! Thanks

 

Yeah just get up to speed (in a straightaway) and click it into 4wd. It will be undeniable if that's the problem. I see that ECGS makes a bushing to replace it. Do a search for 'ECGS bushing'. Lots of info on here about it.

 

If it isnt the ECGS bearing issue, have you changed your ujoints? mine shook and then eventually started to squeak...

 

Auto or manual? Is the whole vehicle shaking or just front end?

 

Auto. It seems to just be the front end and in the steering wheel

 

No I haven’t changed my ujoints.

 

I had a similar issue and it was bad sway bar end links causing a shake.

 

So I got it up to 40mph felt the vibration and switch it to 4wd and it went away

 

Sounds like a bad needle bearing

 

Mine has been doing this too, however the vibration doesn't seem to stop when its in 4x4. Most likely u joints?

 

Check carrier bearing also

 

So I don’t have a 4x4 and someone told me my truck doesn’t have the ECGS clamshell bushing but when I’m in drive and push it over to the 4th gear it goes away

 

You are shifting it into S4 where you're limiting the top gear the transmission can go into. If it goes away when you do that then don't quote me but I think thats a sign of torque converter shudder. If the truck is 2WD then you do not have the front needle bearing

 

If thats the case then it's most likely torque converter shudder. I had the same issue and when shifted in 4th it would go away. I replaced the converter and the problem is gone.

 

I recently went through this same scenario. Front end was shaking. Getting vibration from the front between 30-40 mph. Everything went away as soon as you put it in 4wd.

Needle bearing was bad. Replaced with ECGS bushing and all is back to normal

 

my thought as well. I drive in 4th on the 40 mph roads

 

The problem with these toyota converters is the flex lockup. The clutch surfaces glaze over and shudders like crazy similar to a glazed flywheel surface in a manual transmission vehicle when you release the clutch pedal and vehicle shakes. There are some remedies like Lubegard Instant Shudder fix which does work but it's a temporary fix as the problem will eventually come back unless the converter is replaced.