I finally got a chance to open up my front diff that I replaced in early Feb.
Are those cracks?

Looks to me that when the aluminum casting for the diff was poured it cooled down to quickly, causing stretching of the surface. I have seen this on aluminum castings and on allow steel investment castings. It normally is a surface imperfection, and the cracking appearance should only be on the surface. BUT, i have also seen the same thing with the cracks going deep. Only way to be sure is to get it magnetic particle inspected. Probally can be done at a automotive machine shop or a shop with the capability. Cheap insurance to know for sure before you put it back together.

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05 Sport, Frankenlift II Premium, Al's Gen 4.5 A-arms, Moabs with LT245/75/R16 MTR's, RL Super Skink Sliders, front tow hooks, Surco Safari Rack.

I think I'm going to make a planter out of it. It had 195k on it when I took it out.
I replaced it with an 06 with 40k on it, and put a dtt in it.

So we have the skills in NJ to do gears? The money I may be able to save could buy me lockers

How are those gears Carmine?

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Mike Smith
06 KJ Sport - PA - ONSFARI

OME 926/948 w/ OME Shocks, 3/8 Boiler, 1" LTT, a bit of Clevis lift
MOPAR Skids, Custom trans skid
Valley Roof Basket with Extension (when required), Homemade fence post crossbars with Thule system to compliment
Mastercraft A\T Something or another...

Gears are the same. 3.73. Just put in the DTT, not too difficult but I had watchful eye along the way. The rear powertrax is giving me fits. It was working perfectly at Rousch Creek. Then it not so much. I think it might be the drivers side C Clip. Hopefully I will be able to open it up tomorrow.