American Powertrain has partnered with Gearstar to offer overdrive automatic transmissions and Yank Torque converters. We will be adding a line of automatic Pro-Fit kits for specific vehicles soon.
![](https://i0.wp.com/americanpowertrain.com/wp-content/uploads/2023/12/Gearstar-4L70.jpg?resize=640%2C459&ssl=1)
![](https://i0.wp.com/americanpowertrain.com/wp-content/uploads/2023/12/4L80E.jpeg?resize=640%2C416&ssl=1)
![](https://i0.wp.com/americanpowertrain.com/wp-content/uploads/2023/12/4L65E.jpeg?resize=640%2C459&ssl=1)
![](https://i0.wp.com/americanpowertrain.com/wp-content/uploads/2023/12/4L_60-700_LVL4_left.jpg?resize=640%2C458&ssl=1)
![](https://i0.wp.com/americanpowertrain.com/wp-content/uploads/2023/12/Yank-pictures-2.jpg?resize=640%2C586&ssl=1)
![](https://i0.wp.com/americanpowertrain.com/wp-content/uploads/2023/12/SST-LS1-LS2-LS3-2.webp?resize=640%2C586&ssl=1)
We will be offering the following transmissions and kits
- 4L60E for SBC/BBC/Early LT/LS
- 4L65E for LS/late LT engines
- 4L65E with two piece bell for SB/BB Mopar and Gen III
- 4L80E for LS engines and late model LT engines
- 4R70W for Ford Small Block, Mod Motor and Coyote
We will also offer the following automatic transmission parts to complement your transmission choice:
- Transmission cooler
- Flex plate
- Torque Converters
- Transmission controller
- Driveshaft
- Crossmember
- Pro- Fit kits for specific applications with bolt in crossmembers