6L Engine (2020-2022) - 90K-120K miles
9L Engine (2000-2004) - 30K-60K miles
This used OEM transmission is listed as its own product for the 90K-120K miles option
8th digit - Engine (2019) - 60K-90K miles
front wheel steering
(2011) GMC Truck-Sierra Denali 2500 (2011 Up) AT, 6.0L, 4x4, ID 1DGA AT Transmission - 120K-150K miles 3.5L 6L Engine (2020-2022) - 90K-120KGMC Truck Sierra Denali 2500 (2011 Up) AT, 6. 0L, 4x4, ID 1DGA AT Transmission (2011) 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