My experience with lowering the mk6 van
This setup is achieved by doing the 3 leaf mod. . You do the axle flip as usual..I also kept my original axle brackets in place and bought some escort mk2 saddle brackets and buy some escort mk2 u bolts which are longer. These are available on ebay.. so you get another pair of van top leaf springs and cut them down so they are 1" longer each end than the bottom leaf spring.. fashion a longer locating bolt and put them all together which should look like this. .
Will be doing the same with my next van.