I hope it was just a fluke, both inner and outer shafts at u joint are demmalished, outer all that was left is shaft not even portion for the u-joint, the inner shaft broke at the outter area for u-joint, I was pretty sure ujoints were in good shape. I think what may have happened which seams kinda crazy but i was stuck on huge rock, yet loose gravel was all around also, and water was flowing pretty good, I think loose gravel rode up the tread on the boggers and then fell down front side and water pressure washed gravel debris back into joint area and it went crunch crunch? I wasnt driving it that hard or cutting wheels very much, but didnt notice until after getting unstuck that it was broke, so next set of chromos are in now with cant remeber name of joints, gold in color like $270 pair?? anyway, gonna try it out again this weekend and next on farm, and see how it holds up.