The Diesel Stop banner

Wheel bearing noise?

1993 Views 18 Replies 3 Participants Last post by  panhead george
I can't tell if I have tire noise or a problem with wheel bearings.
I would think tire noise will have a higher pitch the faster you go.

The noise I have does not change. I hear it only when I am moving.
I have jacked up the front end and spun the wheels but I do not hear any noise.

Does any one have any thoughts?
1 - 6 of 19 Posts
Rotate the suspect tire with the spare.
Chock BOTH front tires fore&aft, put the rear axle on jack stands, have an assistant run it up to speed while you listen underneath with a stethoscope.

See less See more
Not exactly a "wild guess"... These are from different trucks:

. . .

I would NOT drive the truck again until you look inside & remove any loose chunks. If one of them goes into the R&P on a bad bump, it could lock the rear wheels, or explode the diff.
See less See more
Post pics, including the embossed text on the edge of the ring gear. But in general: when the R&P gears wear down enough to detect, everything needs to be replaced. A complete used axle assembly is usually the cheapest, quickest, & best solution.
I see them along the ridges of every ring tooth. But I also see strikes on the carrier, which tells me the pinion nut is loose. Pull the driveshaft off the rear axle, remove the pinion nut, wash the pinion & nut threads with carb/brake cleaner, apply RED threadlocker, and torque the old nut to ~190 lb-ft. That will NOT repair any damage, or save the gears/axle, but it's nearly free, and it will make the truck reasonably-safe to drive for a couple thousand miles while you source a permanent repair.

The way I post pics is described in this thread:
Well, if the pinion isn't moving back into the carrier, the carrier has to be moving forward into the pinion. Those are the only 2 ways for the pinion to engrave those stripes onto the carrier. So check the carrier bearings & cap bolts.
1 - 6 of 19 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.