Carli Suspension Cs-Frad-2325 Radius Arm Bracket

When lifting the front of the Super Duty 5.5 Inch, the factory caster is reduced by approximately 1.5 Degrees. We provide a 2 Degrees caster shim which is enough to restore this caster and add a touch more – unfortunately, this “touch more” is rarely enough for proper tracking. This leaves us recommending our Adjustable Radius Arms proven to add an additional 2.5 Degrees of caster (when maxed). Combining the Carli Arms and 2 Degrees shims results in a Super Duty on 37 Inch tires that holds a lane, and returns to center after a turn, better than a stock truck. Given the tight proximity of this debris shield to the axle tube, any caster shim over 1 Degree will cause contact. Unfortunately, these trucks come with low caster from the factory compounded by the loss of caster from lifting the truck (radius arms tilt the axle forward – reducing caster – as the axle travels away from the frame); we had to figure out a solution. The Carli Radius Arm Drops for 5.5 Inch lifts were designed to fix this problem once and for all. The bolt-on design is a simple and easy installation that will provide the necessary increase in caster at a lower price point than installing the full Carli Radius Arm System and are compatible with stock OR the Carli Adjustable arms.