Another popular option is to get a steering box from a 1998/99 Durango with a 318 ci motor. They claim to have a tighter steering ratio. I've never done this myself though.
I replaced The steering box today and scout if you want to do it yourself it only cost me like 135 for everything and the auto shop wanted to charge me like 520 if you do it yourself get a heavy duty pitman arm remover becuase it took me a a couple hours just to remove the Pittman arm but once u get that done it's really easy