(Used) 2006 Allison (AT), TRANSMISSION ASSEMBLY- Model: 1000RDS, Serial Number: 6310668365, Engine: GM/Chev(HD) 6.6L DURAMAX, 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