I was looking into a solution for the w202. I found that the w208 subframe and the w202 subframe update to the same unit. Axles and differentials will be easy to swap. The clk55 came with the 220# carrier and large half axles. This would be a easy swap for a 210mm ring gear and the qdf7v would be the unit to use. This would eliminate the need for any custom parts. What I do not know is the difference between the original subframes and if that would be needed to do the swap. The flex disc would be different also and require some looking into.