MIX 1 cup barbecue sauce, lime juice and water; pour over ribs in shallow dish. Turn to evenly coat both sides of ribs. Refrigerate 2 hours to marinate.
HEAT oven to 350°F. Remove ribs from marinade; discard marinade. Place ribs in shallow foil-lined pan. Bake 30 min., heating grill to medium-high heat near the end of the baking time.
REMOVE ribs from pan; place on grill grate. Grill 10 min. on each side or until done, brushing frequently with remaining barbecue sauce.