7. The rear suspension gets rid of the stock upper control arms and rear track bar. A pair of triangulated Clayton upper control arms centers the axle under the vehicle and works in conjunction with extended Clayton lower control arms. Subframe stiffeners tie the front and rear suspension systems together as well as strengthen the chassis. At the top of the photo, you can see the optional Clayton skidplate: big-time protection for vulnerable drivetrain components. An extended rear brake line and lift coils are part of the suspension system but are not shown here.