aFe F3 Torque Converter 1200 Stall 01-15 GM Diesel Trucks V8-6.6L (td) LBZ/LLY/LMM/LMLIf you are looking to put your power to the pavement, you need our F3 Torque Converter. Torque converters are responsible for transferring engine power to the transmission. Single clutch OE torque converters can slip and increase transmission fluid temps. As you add engine performance parts like intakes, manifolds, etc. the factory torque converter's stall RPM rises thus reducing the available low RPM pulling power. This is where the F3 torque