yup, just get a ring and pinion set, front and rear if its 4x4.
remove wheels, remove axles, pull diff cover, loosen main caps, loosen carrier adjusters(theres a tool to make this easy), remove carrier, remove pinion nut and pinion gear, ...etc etc etc...i cant type all the steps, i'm not a great typer. it takes me about 2 hours to do it, but i've done over a hundred dodge rear end rebuilds/gear swaps. get yourself a manual. the biggest problem you might come across is removing the pinion bearing to get the shim out to install on the new pinion gear. its easier than i make it sound...