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Old 06-18-2014, 10:08 AM   #1
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Default Pinion Bearing Preload

Hey guy, I need to replace the pinion seal on my 76 with a ford 9". How can I text the preload on the pinion bearing without taking the carrier off, or if anyone has any better ideas on how to test the preload please let me know. Can I just mark where the nut is and line it back up when I'm done since I'm not replacing the crusher sleeve?
Thanks in advance
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Old 06-18-2014, 11:08 AM   #2
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Try "feel" (I know, easy to say when you do them all the time) but you want to just have enough resistance to know there is no slop....having it turning the axles and wheels makes this difficult so remove both wheels so there is as little mass turning with it. If they are removed tighten until you can just real some resistance and you will be close and the existing crush sleeve you should then be tight against as well (no way to see, but assume so).

Not exact, but works well.
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Old 06-18-2014, 11:18 AM   #3
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Yeah I'll try that! I just wasn't sure if it had to be the exact same preload or if I could just be close to the original preload. Thanks
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Old 06-19-2014, 10:49 PM   #4
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If you have access to an air impact you will get good results with a method I was taught and have used for the past 20+ years for that job.

Change the seal and run the yoke nut up until the impact starts hammering and STOP!!

Works every time.

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Old 06-21-2014, 09:49 AM   #5
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Quote:
Originally Posted by Rnlcomp View Post
If you have access to an air impact you will get good results with a method I was taught and have used for the past 20+ years for that job.

Change the seal and run the yoke nut up until the impact starts hammering and STOP!!

Works every time.

.
Absolutely...that works as well.....same process, just described a bit differently and you description is easier to understand!
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Old 06-21-2014, 09:49 AM
 
 
 
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