So after considerable thought, I decided to swap my NP242 for the more common NP231J. But before I do the swap, I wanted to 'beef up' the NP231. I procured a stock case fron the salvage yard for $100. With lack of anything better to do today, I disassembled the 231. Going to the pick-n-pull tomorrow to source a 6 pinion planetary gear from a NP241 and a wider chain and sprockets from a NP231HD. Then I think I'm going to order the HD SYE from Performance Offroad Center. I'll keep you updated on the progress...