Vibrations front drive shaft.

AlStew said:

I pulled my front drive line to diagnose a grinding / bad bearing noise at low speeds turning driver.

I reinstalled my front driveline and now I have a lot of vibration that wasn't there before.

The drive line was off the jeep for a month. I can't remember, but I think I moved it and it came apart on accident. I could be imagining this in my head??? ...but how can you tell if both pieces are line up correctly and in "balance"

View attachment 276002
Picture and it's an adams drive shaft for reference.


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jeeeep said:

yeah, taking it apart and not putting it back in the same alignment will throw it off balance.

Contact Adam's and see if they have witness marks on the DS as to how they lineup.

I did the same thing when I unboxed my Coast DS, they informed me about the alignment marks.

Or you could take it to a DS shop and have them balance it.

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AlStew said:

View attachment 276003

Yep you were right on the money!! Two center punches and they're in line. Thanks jeeeeeeeeeeeep


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jesse3638 said:

I'm assuming it did come apart and misaligned? Returning them to in line solved your problem?

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AlStew said:

I can't remember if the drive line ever came apart. It was out of the jeep for a month because of this weird grinding noise and my tcase was leaking.

Adjusted my control arms and torqued the tcase yoke and it fixed those two problems. I just remembered moving the drive shaft once in the garage. Anyways, had some crazy vibrations after reinstalling so I messed with my caster and torqued the front end and now it's better. I'm gonna have a shop look at it, because I did something incorrectly.


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