optidrive

[BrianG]

Like others have said: All the optidrive does is sense forward or reverse motion via the transmission optical sensor (hence the name "Opti") and locks out the shifting servo. That's it. Purely for safety of the tranny. Removing the unit will still allow you to shift; you will just lose the safety.

Even so, I have heard of instances where the OptiDrive allowed the servo to shift while the tranny was still in motion - probably a programming issue.