no problem...
as long as you set your rear top bag mounts up with the 225-75-16's on your truck, you wont have to redo anything. just put your semi wheels on and roll out.. (oh, and stretch you rear fenders)
the only reason i will have to raise my rear bag brackets is if i want to switch from running a 16" 60 series tires to some semi wheels.
here is a pic of another build on here.(nub drully).. this is the difference between a 16 inch 60 series tire, and semi wheels with low pros.
the semis are alot taller than the inside 16" tires..
see how the bags are already flattened out running the 22"s ? he set his rear upper bag bracket to lay on 22's.
if for some reason he wanted to switch back to running the 60 series 16's and not change the bag brackets. it would cause him to lose a couple inches of lift.