I knew this when I bought the jeep: The seller got it in trade for some work he did for a neighbor who used it on their farm. I just got off the phone with him (seller)...He's super cool but he's 80 mile away. He has the correct puller and extra axles for each side of the differential. He said I can borrow the puller and have the parts I need for free. If I trailer the jeep to him he'll help me do the repair. He said it was probably swapped for one reason or another or "Jeep has been known to do some crazy sh*t." He believes the T case and tranny are stock but I'm going to try and confirm that. For now the goal is to get it back on the road. Stronger axles may be in my future but I'll probably just break the next weakest link.