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Unread 12-02-2011, 10:23 AM   #1
jeepcjdummy
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pinion bearing torque question

I have a dana 30 diff and have replaced the front pinion bearing a while back (approx 150 miles on it) The pinion rear bearing was found to be faulty (originally replaced the cone but not the race, a mistake for sure) I have now replaced both the rear cone and race. The specs I have state that when torquing used bearings a 6-8 inch pound setting is correct and when torquing new bearing a 12-15 in. pound setting is needed. I currently have 8 inch pounds torque on the pinion shaft My question is whether I should increase for the new bearing or should I leave the torque lower considering the semi break in element of the inner (larger) bearing.

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Unread 12-03-2011, 05:25 AM   #2
jeepcjdummy
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failed to mention that I'm referring to bearing preload when torquing down the pinion nut on the shaft.
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Unread 12-03-2011, 07:05 AM   #3
Nejeep
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I would probably split the difference (10 in-lb), but I have never done a D30 so some other members may have better advice.
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Unread 12-03-2011, 10:07 AM   #4
jeepcjdummy
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Quote:
Originally Posted by Nejeep View Post
I would probably split the difference (10 in-lb), but I have never done a D30 so some other members may have better advice.

Thanks for the input Nejeep,..sounds like good advice to me,...I plan to give that a go,... will have to take it real easy on the wrench,.as I'm working with a no back-off crush sleeve for the bearing preloads.
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Unread 12-03-2011, 07:30 PM   #5
KJK
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I've done my Dana 30 before and I'd probably shoot for 10 in. lbs also.
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