2nd generation new suspension

Installing 2in lift and rough country front struts and rear shocks today

 

Installed new suspension today. Now I have a loud hum? Sounds like it is coming from the front. Any ideas?

 

My guess is that you’ll need to address the needle bearing. You’ll want to install the ECGS needle bearing. There’s a million threads on it here. Here’s a thread to get you started.

https://www.tacomaworld.com/threads...cement-for-vibration-rotational-groan.790361/

 

Thanks for replying. Replaced both front wheel bearings in front. Still have a hum?

 

Does it go away in 4H?
https://www.tacomaworld.com/threads/needle-bearing-yes-replace-it-ecgs.716338/

 

No. It hums until I stop.

 

Did you pull your axles out & replace the inner needle bearings on the front diff? Or did you only replace the outer bearings behind the knuckle?

 

Outer bearings behind the knuckle

 

The needle bearing in the diff is a probably cause. Check 303Tacomas post above for troubleshooting.

 

Just went for a test drive. The hum is in 2wd. Goes away when in 4wd.

 

Needle bearing in front diff
Replace with ECGS bushing

https://eastcoastgearsupply.com/c-1207127-toyota-clamshell-bushings-2005-2015-tacoma.html

 

Oh man. That means I have to take it apart again. Do I need to do it right away or can I wait awhile. Thanks for your help.

 

Id say you can wait a little while.
I could be wrong though
I drove mine probably 2 weeks before i replaced the bushing.

 

Thanks 303 will order the parts

 

I'm wondering if this hum is damaging or just annoying

 

It's the demise of the bearing.

 

Ok thanks

 

All good now. Thanks again for your help.

 

Yeah once I got my kings that happened untill I changed the needle bearing

 

Yes, everything I have done made it better. Differential drop kit, fluid change. Still have a vibration. So thanks to 303 I ordered the ecgs bushings. Haven't had time to install yet. I'm sure it will be the cure.