What are the exact differences in components of the 2" and the 3" body lift. Does the 2" body lift have to have a steering shaft extension, Fuel filler extension, automatic transmission shifter bracket relocator? Does it move the radiator? I don't want a 3 inch body lift but and thinking about a 2 inch.

 

The 2" is the same as the 3" just with no bumper relocation brackets. So if you want your bumpers moved up to match the body you'd have to have some fabricated for you. Its doubtful that you'd really notice the height difference between the 2" and 3" lifts.