I've got a 1938 Chevrolet 1/2 ton pickup with a S10 rear end, leaf springs and shocks. I do have wider than stock rear wheels/tires. Runs great on level ground, but when turning either direction over uneven ground, the rear tires rub on the pickup bed sides. There's about a finger width's clearance between the tires and bed sides while sitting level. If I jack up one side (or the other) of the rear end the tire tilt's in and touches the bed side. Would installing a rear sway bar help the situation?