Sounds like you're thinking of curved or angled control arms, which you won't find anywhere in the OEM or aftermarket because they don't work well.

Moving the transfer case down 3 inches would also require lowering the front diff 3 inches, which would require new frame members to do so. That would cause the axle shafts to sit lower and you would need a lot of clearance at the lower arm, which would leave an empty space where there needs to be material for strength. You would also need to lower all of the steering linkage components which would require a lot of fabrication.

Even with a 6 inch suspension lift you're only going to get a 33" tire under it without trimming, and you'll have to deal with axle wrap at the rear end. A much better solution is a 3 inch suspension lift and 3 inch body lift.

In order to get feedback, you're going to have to explain how you plan to do it. I don't see it as being possible unless a change is made to coil over shocks, dropped lower arms and a new knuckle casting.