2006 Polaris Sportsman X2 Front Wheels not spinning in AWD

[YZFatCat]

Hi everyone, I just got a used 2006 Polaris Sportsman X2 and went to do the front differential oil change. I removed the drain plug and no oil came out. There was just some mud. I went ahead and put in the 6oz of on-demand oil to see were the oil leak is. It seems to be coming out where the drive shaft comes into the differential unit. I have the ATV jacked up, so I started it up, put it in high and AWD. The AWD indicator appears on the display. I give it some gas and the rear wheels will spin, the drive shaft to the front diff is spinning, but the front wheels are not doing anything. I swear it seemed like the AWD was working but I guess I made a bad mistake. I have seen some different posts about the front diff problems, but these 4wd atv's are new to me and I just need some ideas and prayers that this isn't going to kill the pocket book. Any help would be greatly appreciated. Thanks a lot.

[HONDARACER]

When those machines go into deep water, the oil floats out when the water enters the housing. THings are still moving inside the diff, except now theres only water for lubrication and cooling. Once the water evaporates there is nothing and it soon grinds itself to bits. The diff needs to be replaced or rebuilt. Its probably severly damaged though.