Preparatory Work

Remove: 

• the spring. See: SPRING (AW50/51 AWD; M66 AWD; 2005-2010)or SPRING (B5254T7, AW55-50/51SN; 2011).
• the rear wheel hub. See: REAR WHEEL HUB (B5254T7, AW55-50/51SN; 2011)or REAR WHEEL HUB (AW50/51 AWD; M66 AWD; 2005-2010)