Speedometer Driven Gear Housing, 345215 Transmission Speedometer Seal, Gear Housing Leaks Kit for TH200, TH250, TH350 Material: Made from stainless steel and rubber Replacement part numbers: A44774, 44774, 25513247, 345215, 35227, 35922, 3869910, 3999L, 6264903 Compatible with 7/8 inch TH350 type housing, fits tail housings with a 0.890 inch hole and 17 to 22 tooth gears, and Muncie gears with 22 to 25 teeth and a 0.875 inch hole Gear housing adapter includes an extra oil seal to prevent fluid leaks from the speedometer gear housing Includes inner metal clad seal and outer seal for a secure fit that maintains proper fluid levels Designed for use in transmission systems requiring sealing and under varying temperatures and pressures Package Included: Steel Speedometer Housing With Pre-Installed Seal x1 Extra Inner Metal Clad Seal x1 Extra Outer Seal x1