Drive line Phasing, Is it still a thing?

[MobileHomie]

I had a pinion seal replaced a couple of weeks ago. This morning I went for a road trip, about 2 hours on an 85 mph freeway, above 90 mph it seems I am getting a slight drive line vibration, or it could be my imagination.

I may be a little twitchy, because I am overall not happy with the fellow that did the work.
When I picked it up there was mud up the sides consistent with driving on a wet dirt road, I suspect he drove it home for lunch..Of course he denied it, but there was mud caked up in the fenderwells too. I baby that Denali and have a Jeep for off road use.

 

[swathdiver]

I had a pinion seal replaced a couple of weeks ago. This morning I went for a road trip, about 2 hours on an 85 mph freeway, above 90 mph it seems I am getting a slight drive line vibration, or it could be my imagination.

I may be a little twitchy, because I am overall not happy with the fellow that did the work.
When I picked it up there was mud up the sides consistent with driving on a wet dirt road, I suspect he drove it home for lunch..Of course he denied it, but there was mud caked up in the fenderwells too. I baby that Denali and have a Jeep for off road use.

Dried mud can cause vibrations too, especially if its stuck in the wheels.

 

[tom3]

Don't see how anything could have changed with the drive shaft with the seal change unless the pinion nut wasn't tightened correctly.

 

[OR VietVet]

Driveline phasing would not be effected by what was done. If he dropped the driveshaft, pinion nut not tightened correctly, mud on wheels and mud on the driveline....WAG. No u-joints replaced, right?

 

[MobileHomie]

No u-joints replaced.
I looked in the wheels and there was no build up. Not like it was gumbo mud, but I could tell he ran it down a dirt road. We had some snow/rain and it wasn't freezing.

 

[tom3]

The dirt would upset me a little bit too. I am also real picky about keeping it clean, when I get the dealer lube job (get lubed in a couple ways there) I leave a note on the steering wheel to not wash.