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timing a mid-shift bearing?????

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Old Mar 7, 2008 | 04:40 PM
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dyhrdford's Avatar
dyhrdford
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timing a mid-shift bearing?????

I was told by a co-worker who has been a mechanic for 20+ years that has had some experience changing a midshift bearing that they need to be timed to the driveshaft. If it is not timed correctly, the vehicle will have a vibration. Has anyone ever heard of this? I am planning on doing the job tomorrow and need to know rather soon. Thanks, Aaron.
 
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Old Mar 7, 2008 | 05:00 PM
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Do you mean mid shaft bearing? Also known as a carrier bearing.

The bearing on the driveline about halfway between the tranny and axle. Not too sure about the timing part of it though....
 
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Old Mar 7, 2008 | 07:59 PM
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timed to an extent,the u-joints need to be lined up other than that all the alignment crap you hear is a wives tale
most slip joints have an index tooth and will only go one way
 
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Old Mar 8, 2008 | 04:52 AM
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Thanks for the responses. I know I am hard of hearing sometimes, but I always thought it was called a mid shift, not a mid shaft. Im ok with being wrong, as long as I learn from it, right?? Thanks for the correction. Yes that is the bearing I am refering to. I was told by my coworker that he marked everything before it came out and installed it the same going back in, and it still was wrong. The midshaft bearing was not timed to the shaft itself. Atleast thats what I was told.
 
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Old Mar 8, 2008 | 06:34 AM
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Look at the universals first. They have to line up the same way. As they turn, u-joints don't go the same speed all the way around, so the one on the other end has to cancel the first one. If it'e even one tooth off, you'll feel it.
 
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Old Mar 12, 2008 | 09:19 AM
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Yes, the U-joints need to be aligned the way they are right now. The mid-shaft bearing has no timing or alignment issues.
 
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