2001 Allison 1000 SERIES, Truck Delivery, Transmission Assys, Fits to: Freightliner MT55 Chassis, (Used) 2000 Allison (AT), TRANSMISSION ASSEMBLY- Model: 1000 SERIES, Part Number: 29538969, Serial Number: 6310069991, Engine: Cummins ISB, 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# 6310069991, Casting# 6310069991, Truck Year 2001 4UZAA5BW91CJ04675