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Unread 07-21-2012, 09:56 PM   #1
moonpie312
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Differential Experts Needed.

Ok, first off what I'm dealing with is a D30 front differential that I bought with 4.10 gears to put in my Jeep. I bought it with a matching rear out a 4 cyl Jeep. The rear was in great shape mechanically, its already in my Jeep, now the front, is all rusty inside... Bearings are shot.
So.
Question is, Can I replace the bearings and just make sure I put all the shims back in exactly where they come out and not have to get somebody to check it with the marking compound and with a dial indicator setup?

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Unread 07-21-2012, 10:00 PM   #2
Mean Max
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It can be done, but it's a gamble & tricky too. It's least dangerous when done by someone with a lot of axle experience. But if you're just learning & inexperienced, you can have a severe issue & not know it until it's too late.

Max
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No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

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Unread 07-21-2012, 10:17 PM   #3
moonpie312
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Well I know the basics and how it all works, plus I've read a lot and watched videos and whatnot on it, I just don't want to buy the setup tools. What is there that could bite me in the rear if I miss something? I have the press and all the proper tools to press bearings on and off with.
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Unread 07-21-2012, 10:32 PM   #4
Mean Max
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Really, the biggest worry is the pinion. If there is a crush sleeve (some Dana 30s have them & some don't) just avoid being too aggressive on tightening the pinion nut.

The carrier bearings are a breeze. The bearing caps are marked by Dana for each side & orientation, so just pay attention. Also keep all the shims organized so they end up where they started.

Max
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Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
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Unread 07-21-2012, 11:19 PM   #5
moonpie312
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Well pinion bearings are something I've had bad luck with in the past, so I would be willing to invest in an inch pound torque wrench to check the rotational resistance of the pinion like its supposed to be done. So if that's my biggest worry, I can just do that part exactly how its supposed to be, and the rest should be a breeze?
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Unread 07-21-2012, 11:20 PM   #6
deathtrap
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It can be done, It works best if you use the same brand bearings as what you remove (timken nsk ect.) But really the "set up tools" are well worth the dough. All you need is a cheep dial indicator and a beam type inch pound torque wrench to verify that its good. you can get this stuff at the cheep tool stores or on ebay. And these tools can be used for countless other jobs.
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Unread 07-22-2012, 08:47 PM   #7
moonpie312
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Thanks for the tip on using the same brand bearings deathtrap. I know the setup tools would be worth it to have for later jobs considering I'm always working on something. I currently have 5 projects going at once... I'm just a cheap bastard, money is always short when your buying parts and guns.....
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