Bearing and Seal Rebuild Kit for all 66-69 B-Body, 66-68 C-Body and 67-74 A-Body A833 4 Speed Transmissions with 23 Spline Input/30 Spline Output. Includes Main Bearings(308 Front-307 Rear), Tailshaft Bushing, Countershaft Rollers/Spacers/Thrust Washers, Input Rollers, Snap Rings and all appropriate Gaskets & Seals, including Speedometer Adapter O-Ring and Seal. Flat Paper Gaskets supplied in this Kit are Manufactured from a High Performance Matrix Material, providing excellent flexibility, low Flange Pressure Sealing, good Bolt Torque Retention and reduced Fluid wicking. This material does not require the use of additional Sealants. Continuous Temperature rated to 400 Degrees Fahrenheit. Additional Sealants can cause the Gaskets to Squirm while Torquing, thus resulting in a torn or damaged Gasket! This Kit works with Bearing Retainers C94796/C97619 and Extension/Tailshaft Housings 13212, 96707, 97477, 99126, and 99127. Please verify your Transmission before ordering. Synchronizer Stop Rings and Countershaft Gear Shaft is not included which are sold separately.