Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission - Removal, Replacement And Installation - 1 Of 2 >> Auxiliary Transmission, Bevel Gear And Overdrive (B5254T2, Aw50/51 AWD; 2004-2006) >> Transfer case ventilation valve