Mr. Gasket Shock Extension is designed to give extra length for applications were shock mounting has changed. The length of the shock extension is 3". The extension set allows up to 5" more travel for shocks and fits 3/8"-24 shocks (stud end). Shock Extension Kit can also be used to extend 3/8"-24 shifter rods. 2 per set. Finish :Gloss, Weight :0.3500 Pounds, Zinc Plated.