Refer to the official website for this gearbox description: http://www.allisontransmission.com/docs/default-source/specification-sheets/int4700_sa5346 (201306) blk.pdf • sfvrsn = 2 At present, the game comes with Allison 4500 gearbox, but also the game with a torque converter at gearbox, at least the advantages of the gearbox said, used all know, and now I According to Allison official website real Data produced Allison 4700 gearbox, specifically for large transport, the current only Mercedes-Benz a new available (look carefully at the side of the torque converter radiator), measured from Kosice – Budapest, the total traction of 120 tons, fuel consumption only 69.1l, full speed 60kmh cruise, unless you encounter a large slope, the basic speed, but also started ultra-fast, feeling like pulling 20 tons instead of 120 tons, we can see the advantages of this gearbox. Credits: fengshihao