Rumble strip vibration

[Senbukan]

Hello everyone,
Long time reader , first time poster . My 97 lx450 has a vibration that is very much like driving on a rumble strip next to the highway. It seems to happen when i hit a bump . I have replaced the wheel bearings and seals. Please , if you have any ideas let me know.
Thanks Brad

 

[airon23]

how are your rotors?

 

[categorytheory]

Are you lifted?

 

[Senbukan]

how are your rotors?

Not bad , not warped

 

[Senbukan]

Are you lifted?

No

 

[Senbukan]

Are you lifted?

No stone stock

 

[Senbukan]

how are your rotors?

No bad , not warped

 

[flintknapper]

Does the steering wheel shake when this happens?

 

[BILT4ME]

What torque did you set the wheel bearings?

Did you do the work or did you pay someone to do it?

 

[ppc]

Bad U-joints on one of the driveshafts. What speed does the vibration occur and does the vibration get more intensity as speed increases?

 

[jfz80]

Hello everyone,
Long time reader , first time poster . My 97 lx450 has a vibration that is very much like driving on a rumble strip next to the highway. It seems to happen when i hit a bump . I have replaced the wheel bearings and seals. Please , if you have any ideas let me know.
Thanks Brad

This is also classic description of spindle bushing/bearing going bad. Many posts about same sensation. Older OE spindle should have Brass bushing. It’s available (Cruiser outfitters) but if you order new spindle or part it will come with Superseded spindle bearings instead.

 

[Senbukan]

Does the steering wheel shake when this happens?

Yes , just like a rumble strip . I have checked the abs sensor as well

 

[Senbukan]

Bad U-joints on one of the driveshafts. What speed does the vibration occur and does the vibration get more intensity as

 

[Senbukan]

It happens at different speeds . On the highway at 50+ in town at 30 . Happens when i hit a bump

 

[Senbukan]

It happens at different speeds 50+ on the highway 30 mph usually when i hit a bump

 

[flintknapper]

You might check the condition of the bushings in your front Lateral Control Rod. IF they are severely worn then when you hit a bump (or sometimes at just at a certain speed) you get a most noticeable wobble in the front end. But it will always have steering wheel wobble attendant. (the reason I asked).

Driveshaft vibration (out of balance condition, worn u joints, etc) is something else to look at.

 

[Senbukan]

This is also classic description of spindle bushing/bearing going bad. Many posts about same sensation. Older OE spindle should have Brass bushing. It’s available (Cruiser outfitters) but if you order new spindle or part it will come with Superseded spindle bearings instead.

Does the steering wheel shake when this happens?

Yes

 

[Senbukan]

This is also classic description of spindle bushing/bearing going bad. Many posts about same sensation. Older OE spindle should have Brass bushing. It’s available (Cruiser outfitters) but if you order new spindle or part it will come with Superseded spindle bearings instead.

Is one better than the other?

 

[flintknapper]

Is one better than the other?

Newer one has both a brass bushing and a caged needle roller bearing to support the shaft of the CV axle where it goes through the spindle.

So yes, the newer model is superior.

 

[Senbukan]

Newer one has both a brass bushing and a caged needle roller bearing to support the shaft of the CV axle where it goes through the spindle.

So yes, the newer model is superior.

Thank you for your knowledge! I am going to have the driveshafts balanced and replace the u joints ( just because ) if there is a superior brand of u joint please let me know. This may end up being a springtime project . My only heated garage space has a 73 vette with 32 coats of laquor so it never sees a cold or rainy day.