Item N° y0574/02GPM-Spezial Cross shocks singel, 1 pce.GPM-Spezial Cross shocks, premium full metal version, assembled and filled.Special features:- 16 mm shock bore for increased capacity- volume compensation- shock body and caps machined from billet aluminum- hard anodized shock body- machined precision delrin pistons (not injection molded!)- aluminum shaft end and spring retainer- shock caps with replaceable bushings-factory filled with silicone oilWe recommend our progressive offroad tuning springs "". FG cars can use their stock springs as well.Dimensions: - Overall length, extended: long 155 mm- Mounting distance, extended: long 144,5 mm- Travel: long 43,5 mm- Inner diameter of spring: 21 mm - Shock body diameter: 20 mm - Eye bore: 4.5 mm - Eye thickness: top 6 mm, bottom 5 mm - Shaft diameter: 4 mm - Shaft thread: M4 Shock oil recommendations:The GPM-Spezial Cross shocks are factory filled with 500 viscosity silicone oil. This gives a very good shock performance at normal ambient temperatures.When a softer shock is required, you can go for 400 or even 300 viscosity oil; 600 and up if you prefer more damping.One 50 ml bottle fills 5 long or 6 short shocks.