I remember a thread that discussed how the Rebel grille is different shape from the 1500. Not sure about the 2500 though.
ya i'm just thinking for the general size of the front bumper, the sport and otherwise have that plastic piece that can be cut or removed but ours is all metal skid plateNot sure about the bull bars. If the aftermarket part distributor is near you, take your Ram there for a test fitting or ask them if they think it'll fit the Rebel.