2012 Allison 3500RDSP, Truck Tractor, Transmission Assys, Fits to: Capacity of Texas TJ5000, (Used) 2011 Allison (AT) TRANSMISSION ASSEMBLY- Model: 3500RDSP, Serial number: 6511108308, Engine: Other, 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# 6511108308, Casting# 6511108308, Truck Year 2012 4LMBS211XCL023261