(2006) GMC Truck-Sierra 2500 (1999 Up) AT, 8.1L, 4x4 AT Transmission - 120K-150K miles Avenger model VIN 4 (7th digit

model VIN 4 (7th digit

7L Engine (2008-2009) - 60K-90K miles

4L Engine (2010-2013) - 90K-120K miles

6L Engine (2017-2019) - 90K-120K miles

(2006) GMC Truck-Sierra 2500 (1999 Up) AT, 8.1L, 4x4 AT Transmission - 120K-150K miles Avenger model VIN 4 (7th digitGMC Truck Sierra 2500 (1999 Up) AT, 8. 1L, 4x4 AT Transmission (2006) 120K 150K miles This used OEM transmission is listed as its own product for the 120K 150K miles option, so the price shown belongs to this exact mileage selection. It is a practical replacement choice for buyers who want an OEM style part without dealer new pricing. Please verify fitment before ordering. Match the year, make, model, engine size, drivetrain, VIN notes, transmission