The front end makes alot of noise at speeds above 30 and is really loud between 50 and 60. Its almost like whatever is causing the noise resonates at 55 and is unbelievably loud. The noise sounds like I am running huge tractor tires at high speeds, really loud humming knobbies.

Tested
Pulled rear drive shaft, popped it in 4wd and drove it - STILL NOISY
- not the u-joints in rear drive shaft or rear bearing carrier

Drove up to 40 and threw it in neutral and popped out of 4wd - STILL NOISY
- basically coasted at 40 without any drive shafts turning.

Swapped tires - STILL NOISY

I think I have isolated the noise to the front end. I am just not sure where to go from here. The bearings are packed and both axles are new. What should I be looking for or what else can I try to identify where the problem is? Could something in the Diff be causing this?

Vehicle is a
92 4runner 3.0, auto,

 

Oil in the front diff?

 

Dried out Spindle bushings.
Search through the forums for "Spindle Bushing Lubricator"
and begin lubing them.

 

my cv's yell at me sometimes.

 

Turn up the radio.

In all seriousness though, I think it's your spindle bushings.

 

He probably has ADD hubs, so i'm 99% sure it's the spindle bushings.
Lube em before you make it worse.

 

C'mon guys. Get serious.
It's probably the spindle bushings.

but might be ....

 

I lubed up the spindle with these directions, made the pvc version.


https://www.yotatech.com/forums/f116...27/index2.html

Still makes the noise. Whats next?