I agree with coreshot about the twin stick but you can also leave the rear in 4low and the front in neutral to help you make a sharp cut.
And I can indeed strip and reasemble an M16 BLINDFOLDED in under 60 secs.
I have several different transmission/transfercases, 465/205, 465/300, 4500/300, T18/20, 400/20 and a 420/18 w/warn overdrive. Plus the one in my 96 F350 Powerstroke but I'm not sure if that counts.