- Destructive Diesel Performance LLCHome
- 2001-2016 AlliLocker - Allison Torque Converter Controller
- 2001-2016 AlliLocker - Allison Torque Converter Controller

Control your torque converter from the palm of your hand with the AlliLocker™ from Fleece Performance Engineering.
The AlliLocker™ is 100% code free and allows you to bypass the TCM to lock/unlock the torque converter on demand. Turn the bypass switch off, and the TCM regains control of the torque converter clutch.
WARNING: This product is intended for closed course race use only. Do NOT use on public roadways.
WARNING: Always disengage the bypass switch and unlatch the lock switch when not in use.
Control your torque converter from the palm of your hand with the AlliLocker™ from Fleece Performance Engineering.
The AlliLocker™ is 100% code free and allows you to bypass the TCM to lock/unlock the torque converter on demand. Turn the bypass switch off, and the TCM regains control of the torque converter clutch.
WARNING: This product is intended for closed course race use only. Do NOT use on public roadways.
WARNING: Always disengage the bypass switch and unlatch the lock switch when not in use.