I just got the phone with the guys at Indy4x and YES if you want to change your wheel base by up to 3" you would just want to buy the rear adjustable upper link ($220) and rear lower adjustable links ($460), actually they have over 4" of adjustment, but he said you would not want to adjust over 3", I am thinking I only need about 1-1/2" or 2" anyways.

This will in fact push the rear tires back in the rear wheel well, and you can also adjust your pinion angle which is basically where your rear diff is pointing and thus how much of an angle your u-joints on your axle have to handle. I look forward to this mod soon. Under $700 to move your rear tires and better align your rear diff to axle. I can't wait