Coil Spring / Shock Tower Brace / Trailing Arm / Panhard Rod KitConnect the rear upper shock mounts and reinforce the chassis on your 1964 1967 GM A Body with a Rear Shock Tower Brace from BMR Suspension! The chassis of your A Body can flex dramatically, even with mild amounts of torque and horsepower. BMRs Rear Shock Tower Brace (STB402) strengthens the rear chassis of your vehicle and is designed for street performance, drag racing, and handling applications. When performance is a must, rely on BMR Suspension!