Rebuild Kit: 4 Speed NP833 Transmissions used in Dodge Rear Wheel Drive Cars for years 1961-74 This transmission has an iron case and a 10 bolt side cover. This is for the 4 speed transmission without overdrive only. This kit comes with the main bearings, seals, gaskets, small parts kit and high quality synchro rings. All the parts that are included are displayed in the picture.