OK, I've come across a lot of good write-ups on rebuilding the NP205 transfer case, but I haven't found much on the NP203. I have a range box portion of the 203 with a female input 10 spline that is really worn out. I'm interested in replacing that shaft and generally inspecting the rest of it, so I can get it ready for "doubler" duty behind my SM465 /forums/images/graemlins/smile.gif. Who knows of any good sources for rebuilding the NP203? /forums/images/graemlins/1zhelp.gif Thanks!