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How to replace a pinion bearing?

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Old 09-15-2010, 09:22 PM
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How to replace a pinion bearing?

Hi all,
I need to replace a pinion bearing and seal on a 98 F250 with a 10.25 axle. I read up on this topic but still have a question.

When I re-install the pinion with a new crush washer, is it ok to just use the origingal shims? Or do I need to go through the whole process of aligning the ring and pinion with re shiming if needed?

thanks,
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Old 09-18-2010, 10:29 AM
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I've always just reused the shims that were there when replacing bearings.
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Old 09-18-2010, 01:05 PM
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The cost of replacing the shim(s) is relatively small compared to a complete axle re-do if you reuse the old shim(s) & they disintegrate when you torque down the pinion nut to get the necessary preload.

Save yourself a headache & use new shims....
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Old 09-18-2010, 01:54 PM
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There is no pressure put on the shim when torquing the pinion nut, how could it desintegrate?
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