Shake or Vibration Issues

[UrbanRage]

Has anyone tried new rear axles? I know for a fact that the circular mounting face of my rear axles are out of round. I'm not an engineer, but I'm thinking of it like this: when a wheel is out of balance, you have to add weights to counteract the heavy spots in the rim or tire. Well, wouldn't this be the same with the axels? If I can find my videos, I will upload them to show you what I’m talking about. In the meantime, the picture below will give you an idea. 

What are other thoughts about this possibly being a contributor to the vibration issues? 

[Grumpy Bear]

3 hours ago, UrbanRage said:

Has anyone tried new rear axles? I know for a fact that the circular mounting face of my rear axles are out of round. I'm not an engineer, but I'm thinking of it like this: when a wheel is out of balance, you have to add weights to counteract the heavy spots in the rim or tire. Well, wouldn't this be the same with the axels? If I can find my videos, I will upload them to show you what I’m talking about. In the meantime, the picture below will give you an idea. 

What are other thoughts about this possibly being a contributor to the vibration issues? 

 

Believe there was a TSB on that. 

[UofAZCats]

On 1/29/2026 at 7:30 AM, UrbanRage said:

Has anyone tried new rear axles? I know for a fact that the circular mounting face of my rear axles are out of round. I'm not an engineer, but I'm thinking of it like this: when a wheel is out of balance, you have to add weights to counteract the heavy spots in the rim or tire. Well, wouldn't this be the same with the axels? If I can find my videos, I will upload them to show you what I’m talking about. In the meantime, the picture below will give you an idea. 

What are other thoughts about this possibly being a contributor to the vibration issues? 

Its a long thread, and its been a while since I went through it, but there is a guy that did find that his axles were the issue.  After replacement the shaking was gone in his case as I recall.  He got Dutchman replacement axles f I remember correctly.

[Gofas]

Wow, this thread is still going.

my wheel bearing are about shot.

187k

wondering about replacement axles etc. Since I'm gonna be taking all that stuff apart thinking do some replacements of parts.
I've had the shake at 71 mph since shortly after new.

this truck under 80k

new trans 

radiator

ac

brakes 

shocks x 2 

4-5 sets of tires.

but other than that trucks ok, lol

any thoughts?