Add the safety, reliability and performance of rear disc brakes to your vehicle with a drum to disc brake conversion. This kit includes everything you need to mount single piston disc brakes to your Mopar 8 3/4 or 9 3/4 rear axles. All the components are new high quality, precision machined products with a zinc plated finish to reduce corrosion and extend the life of your brakes. The HD parking brake caliper will allow you to use your stock parking brake cables to actuate your parking brake.5 x 4.5 & 5 x 4.75. 1964-74 Plymouth Duster, Scamp, Valiant. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Brakes & Brake Parts\Brake Disc Rotors". The seller is "pstbay" and is located in this country: US. This item can be shipped worldwide.