What he said ^^^^^^

The ratchet parts are different so you need the one for he type of box you are fitting, it's the mechanical bit insiders pedal assembly so you need to pull the pedals out and replace whatever colour you have (red or yellow me thinks) to possibly a black or White one

As for the fronts, the 4wd cars have a totally different geometry so it's a case of changing the struts (thinner) the hubs (totally different offsets and fitments) tcas (pinch bolt to nut and through bolt) arbs (geometry) brakes (again offsets are different)

So what you really need is a full front end

If you are keeping the same xmember then you may have some issues as I'm not sure the width of th RCA holes is the same on the 4wd cars as well as the 2wd ones so that may cause another headache