ATP TF-29 Automatic Transmission Filter Kit is designed for built-in transmission filters. ATP transmission filter kits include all gaskets, filters, and other components that your filter change might require. These filters are specifically designed for your transmission; therefore, improper fitment is never an issue. This filter kit has been manufactured to meet or exceed original equipment specifications. ATP part number TF-29 is engineered to replace the original equipment automatic transmission filter for 1968-1990 GM TH-400 models.