My previous vehicle was a Jeep Comanche 4x4 and it did not do this?

I have my F150, Ext Cab, 5.4L, XLT, 6.5ft bed, truck on level gound in a wet dewy field that was level. I started so spin a little on the top so I put it in 4HI. As I was attempting to make a tight turn (front wheels turned to max) the truck stalled in the sense that it would not go foward. Instead the rear wheels started slipping with no forward motion. I relaxed the tightness of the turn backed up and made my turn. This scared me because the comanche (true AMC built before the Chrysler takeover) was a machine no matter what conditions and would never do this to me. The only thing that is different is the tires and truck length. The comanche has snow tires on it not the crap general tires which I'm taking back to Ford this monday, diff story. Can anyone help me with why it was so bound up and if a loss of traction from the tires could cause it?

Thanks

Jansen