Speedo sensor on T56

[Wagon_Wheel]

Hey guys, bought a T56 and it had no speedo sensor. Its going in a VS so its all gotta change.
The gear that drives is looks completely different to the T5 box.
Need to know whether the sensor has a little plastic gear like the older stuff, or is it just a sensor (infrared?) similar to the ABS sensors on the drive shafts?

Heres a pic what it looks like inside.

[wamboin23]

by the looks, it will just be an inductive sensor, no gears.