Yeah brackets are different and 2.6 is totally different system. The boxes will bolt up no problem. The pitman arms should be the same but they aren't keyed but they are marked so lining up won't be a big issue but they should be replaced while you do it anyway since you're already there. Best to pull the box with the arm and replace it later since you won't be getting the old arm off at the junkyard. Theyre up there pretty tight even with a puller.