you don't NEED a track bar relocation bracket, but it will keep the axle centered...its recommended. if you run a rear relocation bracket, you'll NEED 1.5" of rear bumpstop so the bracket doesn't hit the tub. You'll need at least 1" anyway to clear the tires, so that isn't a big deal. You may need even more depending how long the compressed length of the rear shocks are. In front, you'll need 1" bumpstop extension to clear the tires. Keep the stock front track bar, you don't need anything aftermarket...and besides, all front aftermarket track bars ending up hitting the diff cover without lots of bumpstop extension.
Performance Accessories sells the cheapest thing that can be used as bumpstop extensions....body lift pucks called "Big Block" or "Mini-Block". Mini-block's fit in the rear uppers, big blocks fit in the front lowers. you'll need to drill and tap the axle pad with 1/2-13 UNC or 7/16 UNC bolt, then buy some longer bolts from the hardware store and you're good to go.