Just put them in and was testing them when I heard a bang! Cracked it right in half. I even have the fusible clutch rings and they did not break. I tortured my 10 bolts way harder than that! I can't believe that it broke that easy.Kinda like snaapping a pretzel. If that is the way they are made I would say don't waste your cash on the Warn moly shafts! Hopefully it is just defective and they warranty the boken shaft or I will be pissed! Anybody else have any problems with there shafts???