Bulkheads function a 1-piece tweak-free design that'll be more rigid and robust. The updated reduced profile regarding the bulkheads and redesigned top meal help reduce the overall CG of installation. Bulkheads function centering pins at the top area that align the top of pod dish during construction preventing motion between components during a collision. To simply help expand improve the installation's energy and opposition to tweak, the top of pod dish now uses 4 mounting screws to secure it on bulkheads The 1 piece bulkheads to the X10 usage eccentric bushing inserts for the back axle height adjustment. The aluminum bulkheads permit very quick & effortless ride height adjustment utilizing eccentric axle holder bushings. The axle height is adjustable in 1/2mm increments over a 5mm range. Can be used with right rear bulkhead #372910