yeah from my understanding, the shackles give about 1.5" of lift. so if you wanted the full 3 in the rear, Im thinking the single aal from ac will do it. i have the 3 pack which gives me 3" so thats why im guessing the combination of your shackles and the 1 leaf will get you to the proper height. for the front, you dont NEED new t-bars. Just the UCA's although the tbars are nice and stiff compared to the stockers. I believe ac says theirs are 30% stiffer.