Loud Humming Noise After Suspension Install

[jjb07]

My 2025 4Runner Trd off road developed a loud hum after Ironman IM 2.5 install. It has about 2.5” lift in the front. The hum is prominently heard in the front driver side. I can also feel slight vibration on the accelerator pedal. I read with the previous generation that it could be the needle bearing. I got all terrains Nitto Terra grapplers btw. Could it be the same issue? If not, what could it be?

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[Ltd.Herit.'26]

If you did lift/tires at the same time, best case scenario is a better balance on your tires.

 

[Joe Dirt]

Second that. Alignment as well.

 

[AZGOLD]

Putting an iron man lift on, may have been the first problem.
1. absolutely need an alignment.
2. Rebalancing tire/wheels
3. Never had a “needle” bearing issue on any of my 4 runners, only on a Tacoma I had, but that was a bad differential design.
good luck

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