Reply to "GT4 conversion"

If you retain the original shocks, check to see if the spacers have been removed. If not, taking them out will drop it about 1" all the way around. They are aluminum disks set below the springs on each shock.
If you go the adjustable shock route, you may find that you need adjustable upper rear A-arms to square up your tires. I did. They are available through several vendors.
Don't count on being able to use wheel spacers to set the wheels out a bit. It will depend on the thickness of your wheel at the lug nuts. Do a trial fit to determine whether you have enough threads to safely mount the wheel. My Kodiaks were too thick to allow much of a spacer with the stock studs. Longer studs are available, but they are EXPENSIVE and the rear ones are a real job to replace. If you need longer studs in the rear, the time to replace them is when you already have the suspension apart to install the adjustable A-arms.
All this may be unnecessary, but they are things to think about as you set your flares up.
It's good to know the options.
Mooso