Loose CV Joints

[svx_commuter]

I was replacing my tranny mount over the weekend and saw something I do not like. The inside cups on the front axles are very loose. This is a check I do when I remember to do it and the cups have gotten a lot looser since the last time I checked. These are the green larger part on the front axles next to the transmission. I think the fit between the axle and tranny shaft is okay and it isn't the axle that has worn out. I think it is something that holds the transmission shaft that has worn. So the question I have is this. Is he bearing in the tranny worn out? Is the fit for the bearing worn out? Is the axle most likely bad or close to being bad? Has this ever happen to any one else? I think it is the result of driving around without the rear wheel drive part of the AWD working. Thanks.