[axle]

Hi There
I shall give them a call sometimes during the week and shall let you know.
However to answer your query about why would the spline strip off, the best I can explain is that, the fact that the spline have been strained in the going forward position with the maxiumum torque on them. They should be placed bak in the same way when they are dismantled for any reason if they go in a opposite direction metal fatigueness can occur and stripping of spline will results. Even the Sierra WSM states this but not very clear about orinatation.

In your particular case if the half shafts are new it will matter, but if you ever dismantled it ,please do mark them to put them back so they will rotate in the same direction as they were rotating previousl.

I hope I do make sense; meanwhile if any one else is stripping their half shafts please let me know to ease agony!!!!!!!!!!!!