Update
OK all...
Here is th final report !
The rear axle assembly WAS BENT. How the heck they did that, I don't know.
My son was driving it in the neighborhood and the left axle slid right out also. Like there was no C-clip in there. It didn't break, the axle was fully in tact, just had the splines roughed up a bit as it slid out through the tube and smashed up against the bearings. When I opened the diff cover, I did not see a clip in there, but could have came out with fluid and I did not realize it.
I called the salvage yard and they were saying that there was no way that it just came out, and that we must have broke it. When I got there Saturday morning, they saw that it was in tact and said OK, put it over there and I have another for you. I then compared the two and obviously saw that the one pulled out was bent compared to the other replacement thay had waiting for me. I replaced the axle seals and I know for a fact that the clips are in there, the pin is in and the rear is full of fluid with a bottle of posi fluid.
I hope this is good for a while !
BTW, my tires are ruined from the 350 some miles put on that rear end, as the insides are wore flat out from the bent axle.
Thanks for all the inputs !
Mike