This video is an instruction on how to change the support bearing for the centre driveshaft on a Porche Cayenne or (in this case) a VW Touareg, using original parts. I think this is the best and, for sure, the cheapest way to go. There are other parts on the market where you can change the support in situ, but this means the old bearing needs to be reused. The most important thing here is to make sure the axle is put together aligned with exactly the same splines as it came apart. This job took approx 3,5 hours from lifting to lowering.