Went to the Rt. 23 lube center and got the transfer case and diff oils changed. Made sure he used Dexron III in the TC and synthetic 75W90 gear oil in the diffs. Only charged $79.99, no extra for the synthetic. Had the fuel filter changed too.
The belt was really worn so I had that replaced. He did charge me $59.99 for that which I thought was way high but overall $153 is alot cheaper than what Isuzu quoted me.