Your ruff ride is from your shocks, take them off and drive it around the block real slow, you might find some red ryder shocks some place and put em in or get some doetsch 8000 pre runners shocks, your front end will mess with you if you have worn king pin bearings, lift shackles, worn spring bushings, wrong size bolts in them, tires out of balance, mud on them, and cheap steel wheels, the center will flex with heavy tires acting like out of balance, and check your wheel bearings and tie rod ends, that should keep ya busy, you don't need a sway bar.