NP231 Internal Cracking

[Dzimm]

So I tore the transfer case apart on the XJ today because the chain is worn out and I need working 4wd for winter. 

 

Anyway I pulled the case apart and everything is in good shape aside from some cracking all over the inside of the case.  None of it goes all the way through the case and it's only on the rear half of the case.  It really just seems to be in the top layer of the aluminum. 

 

Has anyone else had this and is it anything to worry about?  This jeep is really a pile and it's just used for winter commuting so I'm not really wanting to spend the money on a new case if I don't have to. 

[Jeep Driver]

Normal.

[dvitha]

like above said, normal.

[MeanLemons]

That’s normal.  It’s just that way from the casting

[Dzimm]

Awesome.  Thanks!