I believe that a few weeks ago I was reading a thread regarding lower units and a gentleman commented that he had an OEM OX66 lower for sale that was only a few months old. I tried searching threads to find out who it was but was unsuccessful. If the person that has it for sale sees this, please send me a message. If anyone else has one, please let me know. Need one with a 20" shaft. I have not contacted anyone about rebuilding mine yet but I am going to try and check on that this week. Thanks in advance. I may also be interested in an HPDI lower.