2011 Allison 1000HS, TRUCK DELIVERY, Transmission Assys, Fits to: Workhorse Custom Chassis W62, (Used) 2011 Allison, (AT), TRANSMISSION ASSEMBLY- Model: 1000HS, Serial Number: 6311058037, Engine: 6.0L gas 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# 6311058037, Casting# 6311058037, Truck Year 2011 5B4LFG2E8B3445154