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Discussion Starter · #1 ·
This is going to sound dumb, but i still have a slight vibration/humming sound after replacing u-joints on my front drive-shaft. Question is, in two wheel drive is the front drive shaft supposed to be rotating? On my old s10 zr2 there was a vacuum actuator that engaged the front diff. So i assumed that the front drive-shaft did not rotate. But on the Titan the front drive-shaft rotates and i was thinking that maybe that is where the vibration/humming sound was coming from. I am stumped.
 

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The front drive shaft always rotates when the vehicle is moving.
The noise could be coming from the U joints if they were not installed properly.
 

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Discussion Starter · #3 ·
when i had the u joints replaced it fixed a worse vibration and a clicking sound. but there was also this vibration/humming. I also thought it was the piece of crap sr-a's maybe falling apart but i haven't see any ply separation. Maybe they need a balancing i don't know. probably have to take it in to get it checked out
 

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Front hubs maybe? Mine are getting replaced this weekend.
 

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Discussion Starter · #6 ·
i was thinking maybe that too. I hope not. What would that cost?0
 

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I just ordered 2 hubs last week from Nissan of Mckinney in Mckinney, TX, for $134 each.
 
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