You get to chose from 17 different shocks. To help you better understand Bilstein's Numbering System, here is an example "S" = Steel Body (grooved for snap ring).
NEW BILSTEIN 6" SMALL BODY SHOCK,36mm,GAS,SPECIAL VALVE
NEW BILSTEIN 7" SMALL BODY SHOCK,36mm,S7G,GAS,RACING
NEW BILSTEIN 8" SMALL BODY SHOCK,36mm,S8M,GAS,RACING
NEW BILSTEIN 9" BIG BODY SHOCK,46mm,S9Z,GAS,RACING
NEW BILSTEIN 7" BIG BODY SHOCK,46mm,S7Z,GAS,RACING
NEW BILSTEIN RACING STREET STOCK SHOCK,FRT,70-76 CAMARO