11-23 Ford F250/350 4x4 Gas -Spec 2.0 inch RR 2.5 Inch Lift Front & Rear Shock Package With RES Mounts Carli SuspensionCarli Pintop 2. 5 shocks optimize performance in robust 3 4 ton and 1 ton platforms. They feature Carli specific valving, machined polished 17 4 stainless shafts, and a 2. 5 inch shock body that delivers 55 percent more piston surface than a 2. 0 inch shock. Features and Benefits: Carli Pintop shocks feature Carli specific, blueprinted valving in a 2. 5 inch diameter shock body that delivers an impressive 55 percent more piston surface area than a 2.