* 700R4: This is a common automatic transmission.
* TH125C: Another automatic option.
* SM465: A manual transmission.
* Others: There may be other less common transmissions used depending on the year and application of the vehicle.
You need to identify the transmission before you can determine the correct transmission bolts. Look for a tag or casting number on the transmission case itself. Once you have that information, you can use online resources (like parts websites or forums dedicated to GM vehicles) to find the correct bolt specifications. A local auto parts store can also help if you provide them with the transmission identification.
