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Old May 11th, 2012, 10:15 PM   #1
hoyt5885
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how to set pinion bearing preload

i have a dana 30 and put new pinion bearingd in it and was wondering how to set the preload on the pinion bearings and what the specs are and do i do it without the carrier in
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Old May 11th, 2012, 10:33 PM   #2
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Those use a crush sleeve. To do it right you would need a new crush sleeve and torque it down to the correct reading. You would need an inch pound, dial torque wrench to get it to the exact number once the sleeve begins its crush. Or you can do what most do and just put the pinion nut back on the the same spec as it was and hope for the best.
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Old May 11th, 2012, 10:40 PM   #3
jpr Jeremy
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My yj hp30 uses shims for pinion bearing preload.

Last edited by jpr Jeremy; May 11th, 2012 at 10:47 PM.
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Old May 11th, 2012, 11:07 PM   #4
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it uses shims instead of crush sleeve
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Old May 12th, 2012, 08:46 AM   #5
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I thought you were talking TJ 30. Then in that case you add or subtract the pinion shims to get the correct preload. Checked with the special torque wrench I mentioned earlier. And that should be done before you put a new pinion seal in too.
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Old May 12th, 2012, 09:17 AM   #6
Ironman Offroad
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I thought I showed you how to do that when you were here picking up the slinger washer?
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Old May 12th, 2012, 09:33 AM   #7
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Oh and to do it "right" you'll have to have the carrier removed to get the pinion in and out to add/remove shims and to check the preload. Or just do whatever Dale told you to do because he's always right.
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Old May 13th, 2012, 07:17 AM   #8
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dale u did my question is do i tighten the pinon nut till i get the right preload and then do the final torque on the nut
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Old May 13th, 2012, 08:51 AM   #9
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It will only get get so tight if the correct shims are in there. The final torque on the nut is to just use a small dab of locktight and snug it down. I think the prefered method is to use a new nut every time its taken off too but I'm sure you'll be fine.
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Old May 13th, 2012, 08:15 PM   #10
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