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Discussion Starter #1
Hey guys... looking for some guidance. I've been getting a bad front end vibration at highway speeds when I hit a bump, it goes away when I slow down to 30 or so. Last week the 4x4 light just started flickering and then stopped working completely... the vibration got worse and now clanks real bad. I had a new steering damper, and knew the original one was shot, so I replaced it last night... no help. I went under the truck tonight when I got home to check everything out and the drivers side shaft is just hanging in the housing... apparently the u joint has been hitting the lower ball joint... eeks.
I love this truck but have been dumping tons of money into it lately... what do you guys think I'm in for now?
Thanks for any input.
'01 f350 SRW 4x4 auto with auto transfer and hubs.
 

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Not real sure, how big of tires do you have on her? When was the last time you had the hubs off and greased the bearings? Have you replaced the seals on the axles? You left a lot of question's out there to ask, but sounds like a hub has gone out to me.
 

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Discussion Starter #3
Well its got 35's on it with a 4 inch lift, the ball joints were just replaced two months ago, I was told the bearings were good... certainly something gone bad in there though, the axle shaft just slaps up and down and there seems like the seals came apart, there's a metal ring and a rubber ring just hanging on the hub side.
thanks for posting!!!
 

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Did you install new seals on the shaft? And this is one you might ask the guys who did the work if they installed the snap rings on the right way? I've seen even new trucks loose a hub after a thousand miles because of a snap ring coming off and axle shift. Keep us up to date.
 

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Discussion Starter #5
Thanks... I'm thinking no... Do you think the inner axle shaft would be bad? just the outer bearing assembly?
 

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Thats hard to say. With out pulling the hub you really can't say. Small grit on the bearings can cause real damage in little time. Good luck
 

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I've got the same problem, but on the pass side. What happened is the inner needle bearing assembly failed (not the sealed wheel bearings). It's where the outer shaft is supported on the inside of the hub assembly.

Now, you've got a damaged outer shaft (inner's still probably good), and possible damage to the hub assembly.

My advice: buy a used hub assembly from a wrecking yard (inspect the needle bearing), and sweet talk them into selling you just the outer shaft (probably won't, inner's don't sell and here in PDX they want $125 - $200). I don't remember what I paid for the hub assembly, but doing it this way will save you time and money (unless you can press your own bearings)

Don't forget new seals, very important for the operation of auto hubs.
 

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Sounds like your hubs are locked up. Replace the u-joint on the axle shaft. Hope your shaft is not damaged. Then while it is torn apart upgrade to warn hubs. Problem solved, while your there take a look at the wheel bearing assembly. If they have high miles on them you may think about replacing them while your at it.

Hopefully this has not damaged the ball joint. If it has replace both upper and lower ball joints. Why not you have the truck pretty much torn apart.

When your done on the driverside proceed to the passenger side and do the same.
 

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dude im gonna let u know right now check that yoke in the front drive shaft, also check for a wear mark on the shaft itself because it will lock and blow the t case apart i leaner this that hard way
 
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