A 2011 tc will have the later breather type fd fitted.
Some early 2010 tc model year did have the mk2 non breather fitted.
A 2006 fd could be either a mk1 or mk 2 as this was the change period.
All three units share the same size pinion spline so although all Will physically “fit” ,your problem lies with the abs sensor.
I believe the three main types do not share the same sensor.
A pre 2006 will definitely not fit
With regard to the post 2006 I am not sure as I’ve never compared the fixing or size of the sensor,one thing I can tell you is the crown wheel is completely different and may well have a different number of “teeth” on the abs side of the crown wheel and even though the sensor Might fit,it could well screw up the abs and traction control .
Best sticking to the correct unit