Ah. I am really not sure on your model. My suspension is completely seperate from the tranny or the transfercase (I do not have a 4matic). But the mercedes shop manual is well worth it for @$140 or you can get a pirated version on ebay.
2005 320 CDI
2006.5 VW Jetta TDI
1991 560SEL (179000 Sold)
1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.)
1972 220D (225000 when sold)