The Koni FSD shock absorber specified for Chevy P30, P32 and P37 chassis with IFS rear is a twin-tube hydraulic, non-adjustable replacement as noted. The extended description identifies the hydraulic twin-tube design and clarifies the unit is not adjustable, making it a direct-fit damping solution for the listed motorhome and truck chassis rear applications where that specification is required.
Koni FSD Shock Absorber Chevy P30 P32 P37 Chassis W/IFS Rear