Rust Buster RB6061 Center Unibody Stiffeners For 84-01 Cherokee XJThe Rust Buster Center Unibody Stiffener set helps strengthen your center XJ frame rail and unibody for both driver and passenger sides. The EZ Slip design allows the repair section to slide onto the frame and will include all the factory needed holes and mounting locations. We use the latest in CAD design to model each repair section before it is laser cut, formed and finish welded. Our repair sections will help to keep your Jeep on the road for