(Used) 2009 GMC 6 Speed (AT), TRANSMISSION ASSEMBLY- Model: 6L80 Serial Number: Al-380 Part Number: 24263936 Engine: GM/ Chev(HD) 4.8 For more information about this item, give us a call. We ship worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921