both the 300 and the 400 stirring are set up pretty much the same. The 400 will have alittle longer travel in the stirring. There are a few items that will help ease the stirring on both. First is the stirring stem bushing locate close to the top of the stem, it requires greasing from time to time. Also a bearing located at the bottom of the stem that is replaceable and the tie rod ends. With age these items will ware out causing drag in the stirring. now on the allwheel drive, the front diff is a limited slip diff