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Hi all,

After years of not having a truck (due to kids, mortgages, etc.) my wife and I were very happy to buy a used 2011 Frontier 4x4 SV to pull our camper and do other things.

Unfortunately after our first long trip pulling camper I heard some rear end noise. Drained oil and found an emulsion of oil, water, and rust. Bearings are shot. I don't think a lot of water was in there but it was enough. Water must have been a gift from the truck's first owner, though I doubt he knew it either.

The ring & pinion, spiders, etc see to be ok so now I am rebuilding the rear end with new bearings, crush sleeve, etc..

Why does it seem impossible to find technical information, torgue specs, etc., on how to rebuild this rear end?

I'm hoping that I don't need to get into any re-shimming. All I need is the pre-load torque specs for the pinion.

Is this some sort of State Secret?

I've never been so thwarted in finding this kind of info on the internet.

Can anyone help?

On another note, this is my only disappointment with this Frontier. There seem to be lots of posts by people who, like me, find it inconceivable that Nissan would not put a better axle breathing system on a 4x4 pickup. I wish I had read about this soon after I bought the truck and could have made modifications.
 

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I checked my manual and there were no specs for the pinion preload but... I googled "what is the preload of the Nissan C200K pinion" and got some specs for the 200 axle which was in the 13-25 inch Lb range and backlash was in the .005 to .007 range which sounds about right for most rears. I usually adjust my pinion preload by feel. As Long as it feels stiff and doesn't stick when you turn it, it should be ok. If it sticks, it's too tight. Be sure to run a pattern on you gears to check for proper setup.
 
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