Unsolvable vibration

[schulte]

shouldn't the faces of those teeth be worn in / polished shiny? looks flat and dull in the photos. how many miles on them?

I had the same thought too; normally I see them polished shiny but maybe that takes more miles? Probably 10k miles on this ring and pinion.

Honestly, I've never had a differential open with that few miles since rebuild. Usually I'm not pulling a cover off until at least 50k or more miles.

 

[schulte]

I was thinking along this line as well like possible cracked wheel too but feel those symptoms would be more constant.


Curious ly do you have aftermarket wheels and/or a leveling kit?

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Have tried different sets of wheels both stock and aftermarket.

Ride height is stock, just replaced all control arm bushings and ball joints on the driver side.

 

[schulte]

Have you checked the pitmam arm?

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A little play but not terrible. All the steering parts could probably use replacement but nothing is completely dickered loose.

And the fact that the noise stays the same when I turn the wheels and go over bumps kind of leads me away from steering, but I agree it does sound kind of like a death wobble. But, a little too high pitched?

 

[schulte]

Separately, all the balancing weights are in place on the driveshaft and the u-joints have about 15k miles on them; OE quality spicer units (non-greasable).

This is a regular cab truck so the driveshaft is steel and pretty short. No visible dents or damage.

 

[Bulldogr6]

Separately, all the balancing weights are in place on the driveshaft and the u-joints have about 15k miles on them; OE quality spicer units (non-greasable).

This is a regular cab truck so the driveshaft is steel and pretty short. No visible dents or damage.

That answers my next question about wether it's a 1 or 2 price drive shaft.

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[Chevy1925]

Recheck your new wheel bearing

 

[schulte]

Recheck your new wheel bearing

Good thought; it's a genuine Timken unit but you never know. Will check in the morning.

This all started about 5 days after the drivers side front end work... bushings, ball joints, bearing.

 

[WVRigrat05]

Been A LOT of complaints about timkins lately. I've had guys at work bitching, I have one that started humming at 1,500 miles, another guy on here had same issue and seen it on a couple other forums.

 

[Chevy1925]

I'd like to say this is a new thing but it's not. Wheel bearing have been a crap shoot ever since the Chinese shit ones were released years ago. Seen this kinda thing happen personally and to other guys many times

 

[MQUnlimited]

I just bought a 08 drw and its doing the same. Cruising around 70mph, hit a bump and it will start to shake pretty bad. I don't think its worn parts as the truck only has 17k miles on it. It does have 20" wheels in 33s and a leveling kit though. My 03 2500 has 37s with a 6" lift that doesn't do that but have incognito braces on the pitman and idler and tie rod hiem conversion kit. Im thinking death wobble is occuring.

 

[NC-smokinlmm]

Check t case fluid.

 

[schulte]

Transfer case fluid was fine, plenty full and I'd changed it fairly recently.

Front differential fluid was nasty and low (my fault for not checking it right when I bought the truck); refilled with new fluid and the vibration hasn't happened since. Have not changed any other parts.

I don't have time right now to pull the front diff and see what's going on, so I'm going to run it for now and put together a spare front diff in case mine decides to let go some day.

 

[Chevy1925]

Transfer case fluid was fine, plenty full and I'd changed it fairly recently.

Front differential fluid was nasty and low (my fault for not checking it right when I bought the truck); refilled with new fluid and the vibration hasn't happened since. Have not changed any other parts.

I don't have time right now to pull the front diff and see what's going on, so I'm going to run it for now and put together a spare front diff in case mine decides to let go some day.

pull the LF cv shaft and put the stub shaft back in the hub, takes the diff completely out of the equation as long as the right side axle is not somehow still grabbing the selector collar and driving the diff.

 

[Mass_LBZ]

ik this is an old thread but did you ever have the problem again? or do you think it was the just the front diff out of fluid?