Hello,

I’m experiencing persistent vibration issues with my 2010 GX460. On November 1, 2023, at 155,452 miles, I replaced the driver’s side wheel bearing, hoping to resolve a constant humming noise typical of a bad hub bearing. While the noise reduced slightly, it didn’t fully go away and remains more noticeable when turning right (starting at 20 mph and becoming more pronounced when navigating on- and off-ramps). The vibration and noise continue up to 60 mph.

Thinking the passenger-side bearing might also be causing the issue, I replaced it on January 4, 2024, at 159,393 miles, using another part from BluePitBearings with OEM components. However, the noise persists.

My mechanic suggested taking the car to a Toyota dealer for a more specific diagnosis. On March 4, 2024, at 160,827 miles, I went to the dealership, where the technician identified a separate noise coming from the driver-side rear wheel. Due to the high cost of replacing the rear hub bearing, I decided not to proceed with the repair.

On March 16, I visited Mavis Discount Tire for a wheel alignment and asked them to check the hub bearings. The alignment manager 'suspected' that the right-side hub bearing was likely the source of the noise.

I've been busy with work, and now, as of December 2024 (167,--- miles), the vibration and noise are still present. Ever since the ambient temperature dropped to near freezing, the vibration has become noticeably stronger at 60 mph, easing somewhat around 70 mph. I’m beginning to suspect the issue might be related to the front differential (front and rear differential fluids, as well as the transfer case fluid, were replaced at 149,855 miles). This persistent problem has been incredibly frustrating, and I’m exhausted from the ongoing back-and-forth without finding a resolution.

For reference, I was previously running 33-inch KO2 tires but have since switched back to the stock 4Runner tires and wheels.

I’m currently running the Ironman4x4 Foam Cell Pro Stage 2 setup but looking to switch back to the stock configuration.

Additionally, are there any Toyota/Lexus specialists in North NJ you guys would recommend? I’ve been unable to find one.

Alternatively, will take suggest a reliable- truck, axle, or 4x4 shop that might be able to help with my issue.

Thank you for your time and assistance.

 

Are your front half-shafts/CV Joints OK with the high-angle due to the lift?

 

^ +1 ... at that mileage, compounded by the lift ... I would reboot and regrease the CV Joints ... retaining the OE axle assemblies ... aftermarket are not the same quality level ... but since you are experiencing vibration, you may be crossing over into excessive wear ... so inspect accordingly. If this is the issue, binding noises will be the next progression ... especially on full-lock turns.

 

Just so you know, I have a 2.5-inch lift on the front, and the CV joints don't show any excessive angles—they actually look almost level. I found that a bit odd since I expected to see some angles but didn’t. Does this mean I should be checking something else, like the motor mounts?

 

Should I also replace the axle seal if I decide to reseal or replace the cv joints?

 

^ ... probably, based on mileage ... and on operating conditions. Inspection will determine. The majority of shops will want to replace with new axles, rebuilt or aftermarket. Whichever ... again, I recommend sticking with OE.

 

I realized I was mistaken. Upon checking again today, I noticed the high angle on the inner CV joint.

The shiny appearance is due to the application of a rust inhibitor. Before applying it, I didn’t observe any signs of the boot being wet or a broken seal.

Should I replace both (left and right) CV axles? It seems challenging to find the axle assembly for a 2010 model.

• Lexus Shaft Assembly Front Drive: Would this fit a 2010 model?
• Toyota CV Axle: According to this link, it fits 2023-2024 4Runners. Can it also work for the GX460? Additionally, should I use the updated axle nut (90177-A0023) with it?

If I proceed, I’d also replace the axle seals:

• 90311-47013 (Right Oil Seal) – 1 pc
• 90311-41027 (Left Oil Seal) – 1 pc

The noise becomes more pronounced when turning right, whether it's during a curve or while navigating an on-ramp or off-ramp.

Turning left makes the noise less noticeable, while driving straight brings the noise back, though it's not as loud as when turning right.

I can also feel the vibration through the pedal and floor.





Passenger close up




Driver close up




Passenger far




Driver far

 

... assume you have springs in the back and not air bags. Your front shocks are adjustable coilovers ... so it is easy to lower the front ... typically a 2:1 relationship ... meaning that adjusting the lower spring perch 1/2" down will result in a 1" reduction in ride height. Based on the rear spring ride height (that is fixed), you may be able to do the above and still maintain the desired rake in terms of stance.

On the axles ... best to go face-to-face with a friendly Lexus parts person who can cross reference Lexus/Toyota part numbers for compatability.

Nothing wrong with running 32's or 33's ... you have aftermarket upper control arms that adjust for camber ... to move the tire forward in the wheel well away from the front body mount for clearance (that may also be chopped for the same reason).

If you are concerned about CV angles, you can also easily do a front differential drop ... inexpensive ... but you will lose some ground clearance ... IMO not enough to be a factor.

 

I suppose this is a follow-up to my previous post. I'm working on reverting to stock suspension components and have located some good used OEM parts that I'll be picking up soon.

I'll be reaching out to the Lexus dealer to confirm parts compatibility, but it seems that the Prado 150, 4Runner, and GX460 share the same axle, albeit with different part numbers.

 

Hi there, I have a 2010 as well. The rumble started at 155k mi. In my case, it gets more pronounced when turning left and pretty much disappears when turning right. It is also much more noticeable at around 40 mph. I have replaced now both front wheel bearings. Suspension components look ok, axle boots look in good shape. The rumble is still there! I don’t think it is anything critical but I want to get it sorted eventually. I am thinking to bring it to my Lexus dealership, they have done other diagnosis in the past and always have been spot on.

 

What is the condition of the tires? If there are cupped it will cause a rumble, and tires with aggressive tread are more pronounced when cupped.

 

A lot has happened since last December — I ended up swapping back to the stock springs, shocks, and stock UCAs.

Just to follow up, my whine issue is finally resolved. In my case it turned out to be the left rear wheel bearing, which the Toyota dealer tech originally suspected. Even after replacing both front axles, the whine was still there.

I ended up taking it to a reputable axle shop, and they also confirmed the left rear wheel bearing. The noise was transferring through the chassis, making it seem like it was coming from the front, but it wasn’t.

If anyone’s troubleshooting something similar, lift the car and spin each wheel by hand—you can usually hear the bad bearing that way.

After the bearing replacement, I still had a vibration/steering wheel shake around 50–60 mph. Turned out my worn AT20 tires (down to 3/32") were the culprit. Swapped them for Michelin Defender LTX M/S2, and that shake is now gone.

Car’s running smooth enough for daily driving again.

 

Car has brand new tires and alignment. The rumble has not changed after new tires were installed.

 

Just had my issue diagnosed by a Toyota Master Tech. Rear Right wheel bearing is shot. His Indy shop did not have the tool to do the job. He said it was rare. Now I have to bite the bullet and go to the dealership. $1600 and includes a loaner car.

 

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