I've tried looking all over and checking with everyone I know for an answer to this question, got nothing useful. So, I've got a solid axle swapped 92 k1500. Has np241 t-case with 4hi, 2hi, and 4low. Front axle is a 78 f250 d44. The lockouts are kind of pointless with the t-case having a selectable drive and they are becoming a pain in my ass. I haven't been able to figure out how to, or what to replace them with so the axle is full time 4x4.