2011 Allison 1000 SERIES, TRUCK DELIVERY, Transmission Assys, Fits to: Workhorse Custom Chassis W62, (Used) 2010 Allison (AT), TRANSMISSION ASSEMBLY- Model: 1000, Serial Number: 6311063819, Part Number: 29550024, Engine: Gm/Chev 6.0L 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# 6311063819, Casting# 6311063819, Truck Year 2011 5B4LFG2E1B3445089