(2006) GMC Truck-Sierra 2500 (1999 Up) AT, 8.1L, 4x4 AT Transmission - 90K-120K miles 3.4L from engine serial number 1068756

from engine serial number 1068756 1

AWD MT Transmission (2004-2009) - 90K-120K miles

2L Engine (2021-2022) - 90K-120K miles

8L) AT Transmission (2000) - 120K-150K miles

(2006) GMC Truck-Sierra 2500 (1999 Up) AT, 8.1L, 4x4 AT Transmission - 90K-120K miles 3.4L from engine serial number 1068756GMC Truck Sierra 2500 (1999 Up) AT, 8. 1L, 4x4 AT Transmission (2006) 90K 120K miles This used OEM transmission is listed as its own product for the 90K 120K 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