04 allroad, 2.7T, 5 speed tip

So got out of school, left the parking lot and car shifted hard into 5th, then shifted hard out of 5th and sent the trans into limp mode, so I stopped turned the car off waited a second or two then turned it back on and started going again. And same thing only the second time it threw an engine code (CODE: P0716) “input shaft speed sensor”
I need help figuring out how much this part is and how hard it is to replace. Is this a big job or an easy one?
Any help is appreciated, Thanks IMG_1547.jpg


Sent from my iPhone using Audizine