SPECIFICATIONSCross-Section | Features & Benefits | Typical Applications | SCAAN Specification Assistance General rating+Net input power (max).............................445 hp (332 kW) Input speed range................................1900 - 2400 rpm Net input torque (max)......................1435 lb ft (1946 N�m) Vehicle weight (max)............Up to 80,000 lbs (36,287 kg) GVW and 130,000 lbs (58,967 kg) GCW MountingDirect..............SAE 1 flywheel housing with flex plate drive Remote.....Converter housing side pads, and rear housing top pad Torque converterType..........................Single-stage, 3-element, polyphase Stall torque ratio.........TC 487-1.50; TC 488-1.70; TC 497-2.72; TC 470-2.83; TC 495-2.39; TC 496-1.78; TC 498-2.45; TC 499-1.91 Automatic lockup clutch..........Effective in all forward ranges or effective in 2nd through 4th ranges depending on model used GearingType.........................Constant mesh, spur type, planetary Range Ratios*: First...................................3.69:1 Second..................................2.02:1 Third...................................1.38:1 Fourth..................................1.00:1 Reverse.................................6.04:1 * Gear ratio does not include torque converter ratio. Power takeoff provisionConverter driven (SAE 6-bolt) Location................10 o'clock position (as viewed from rear) Drive gear ratio............................1.00 x turbine speed Drive gear rating.................300 lb ft (407 N�m) continuous; 400 lb ft (543 N�m) intermittent Engine driven (optional) (SAE 8-bolt) Location....converter housing: one at 1 o'clock position and one at 8 o'clock position (as viewed from rear) Drive gear ratio.......1 o'clock position 1.35 x turbine speed; 8 o'clock position 0.84 x turbine speed Drive gear rating.................200 lb ft (149 N�m) continuous; 260 lb ft (194 N�m) intermittent Oil systemOil type..........................................Dexron II�, C4 Capacity (excluding external circuit)...7.5 U.S. gals (28.5 liters) (w/std. oil pan) Filter..................................External, remote mounted Cooler............................................Remote mounted (Filter and Cooler not furnished on transmission assembly but is supplied by vehicle manufacturer.) SizeLength..........................................37.4 in (950 mm) Width...........................................21.7 in (552 mm) Height..........................................26.6 in (675 mm) Weight (dry)..........................840 lbs (381 kg) (approx.) +NOTE: Vocational ratings may vary by vocation.
Transmission Cross-section (go to top) Design Features & Benefits (go to top)
Typical Applications (go to top)
SCAAN Specification Assistance (go to top) To be sure that you get the most efficient engine/transmission package for your operation in your territory with your preferred vehicle, your local Allison Transmission distributor offers SCAAN. SCAAN stands for System for Computerized Application ANalysis and helps take the guesswork out of vehicle-buying decisions. What's more, it does so quickly and accurately through computer terminals located at all distributor outlets. This means rapid analysis of your vehicle needs on the spot. SCAAN can compute a wide variety of vehicle performance parameters, including gradeability, acceleration and retardation. SCAAN will also check your powertrain specifications against Allison Transmission vocational experience to insure satisfactory vehicle performance. SCAAN is user friendly. Interactive operation allows alternate vehicle configurations to be quickly evaluated to insure optimized powertrain selection.
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