u need to sell ur 2x and buy a 4x. that would be much simpler. but if u insist on keepin urs and making it 4x, u will need to get a complete donor truck. there is more to it than just an axle and a tcase. u will need a new tranny tailshaft, all the brakets, the springs, a new crossmember or two, new steering setup. also the front axle is a fulltime one, which arent the greatest in the world. u will need new driveshafts, rear included. u will need the tcase shifter, all its linkage, and u will have to cut a hole in ur floor. all in all, it will cheaper, and easier, to get a 4x4.
Duane
Duane