NEW WILWOOD REAR DISC BRAKE KIT, 13" DRILLED ROTORS, PARKING BRAKE ASSEMBLIES, RED 4 PISTON SUPERLITE CALIPERS, FOR REAR ENDS WITH GM 10 / 12 BOLT AXLE FLANGES & 2.75" OFFSET CHEVY BUICK OLDS PONTIAC Brand New Wilwood Big Brake Rear Parking Brake, Superlite, Bolt-On 12.88" Disc Brake Kit (Part # 140-12964-DR) for Both Rear Wheels | * Only one side pictured | * See the list, the diagram, and the assembly booklet for a detail of the parts included | Features Drilled/Slotted Rotors and Powder-Coated Red Superlite Calipers Fits: | * GM Rear Ends with the "GM/CHEVY" Axle Flanges and with a 2.75" Flange Offset (see diagrams shown in the images) | * This was the main rear end that GM used on almost all A-Body and F-Body cars from 1964-1978, among many others | * Make sure to check the diagrams shown to confirm the fitment with your rear end Wilwood brake kits consist of specifically engineered and matched groups of components designed to provide superior brake system performance and custom appeal over a wide range of applications Superlite 4 Piston rear disc kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake | * Superlite calipers, 13 two-piece rotors, and high performance | * BP-10 compound pads provide optimized and balanced braking to compliment front big brake upgrades on all types of custom, show and high performance street machines | * The neatly hidden internal shoe system provides a clean installation with superior static holding power for parking | *** These Big Brake kits require at least 17" diameter wheels *** Brake kit includes parts for both rear wheels: &gt; Drilled/Slotted, 1.10" Thick x 12.88" O.D. Rotors &gt; Superlite 4 Pistons Calipers - Red &gt; Drum Parking Brake Assemblies with Caliper Mounting Brackets &gt; BP-10 Smart Compound Brake Pads &gt; Brake Hats &gt; All bolts, washers, nuts, and shims necessary to install the complete braking system on both rear wheels &gt; Complete kit weighs approximately 67 lbs