1998 Allison MD3060, Truck Delivery, Transmission Assys, Fits to: GMC T7500, (Used) 1997 Allison (AT), TRANSMISSION ASSEMBLY- Model: MD3060, Serial Number: 6510154467, Engine: Caterpillar 3126, Reference images for condition For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# 6510154467, Casting# 6510154467, Truck Year 1998 1GDM7C1C7WJ514742