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Carrier Removal, Clean Case

1155 Views 13 Replies 5 Participants Last post by  onick, 
O
Hi guys, bear with me as i'm not too familar with diff internals. I'm going to have my 12 bolt rebuilt, so i'm gonna tear it down, clean, paint, then send to a shop to get setup/rebuilt.

I have attached a 'sequence' to remove the carrier. Please correct me if i'm you see anything i should look out for

1) remove retaining bolt for cross shaft
2) With bolt removed, remove cross shaft to bump in axles to get to c-clips,remove c-clips,remove axles, re-install crossshaft and retainer bolt
3)Remove bearing caps(mark so they go back in the same), remove carrier assembly(shims too). Then remove wheel seals/bearings,ect

I think this will get me far enough so I can thoroughly clean the inside/outide of the housing, then paint,new bushings and send out to get rebuilt.

One more question! My vent is snapped off. Do i just drill out the old one? Where can I get a new one?

Thoughts?

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O
Ok, sounds good. It will just be primer when they get it. Since I will be using the same Eaton unit, do I need to measure anything before i pull the carrier? I figure if they are re-doing the pinion seals and everything they would have to start from scratch anyway?
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O
Mike said:
Doesn't sound like he's changing gears.
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Correct, re-using the gears but the pinion has to come out, right?
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O
Easy enough, will do.

tlowe said:
Before pulling that rear apart, you really need to blueprint it. This is simple and will save whoever a ton of time.
Clean the gears with brake cleaner while it is still together. Mark with gear marking compound and rotate the carrier both directions a few times. Take digital pics of both coast and drive side of ring gear. store these for future reference. Measure the Backlash and record. When tearing down take notes of each carrier shim and the pinion shim. These notes will help you put this rear back together much faster and right. Tom
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O
4
Ok, here's what I came up with. The only item i didn't mess with was the pinion. I think i flubbed up the gear marking as well as it is hard to see. It looks like the back lash on the used came out to around .013. My first time checking back lash, pretty easy actually. I also pulled and bundled up the driver side shims and passenger shims. I hope this will be enough to aid the shop in the rebuild.



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O
Thanks for the tips! I had the pinion locked down very well so it wouldn't budge. It's all apart now so that will be good to know for next time.
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