2010 GM/Chev (HD) 4L80E, TRUCK DELIVERY, Transmission Assys, Fits to: Workhorse Custom Chassis W42, (Used) 2009 GMC (AT), TRANSMISSION ASSEMBLY- Model: 4L80E, Serial Number: 34208421, Part Number: 24208421, 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# 34964, Casting# 34964, Truck Year 2010 5B4KPD279A3439659