Sorry, missed you want to use the S6S box - in that case you have to draw a completely new rear part of gearbox housing, due these boxes were never used for AWD driveline - because of the complex shape of the S6S box, there's no way to produce some simple >adapter plates< which are quite common for swapping AWD gearboxes for other AWD gearboxes - I mean like the Jeeps or Land Cruisers for heavy duty offroading.