Four-wheel drive TW-40LS automatic transmission, suitable for SUZUKI 2017 model.
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Overview: Aisin-Warner designed 4/5-speed longitudinal transmission for SUV/truck applications (e.g., older Toyota Land Cruiser Prado).
Key Features:
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Transfer Case Integration: Full-time 4WD with center differential lock (50:50 split)
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Torque Capacity: Rated for 400Nm with reinforced 3-4 clutch pack
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Gearset: Simpson planetary with overdrive unit
Common Failures:
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3-4 Clutch Burnout: Due to delayed shift timing (P0760 codes)
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Transfer Case Chain Stretch: Causes 4WD engagement faults
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Valve Body Wear: Particularly shift solenoid B (harsh 2-3 shifts)
Critical Maintenance:
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Use Toyota Type T-IV or equivalent
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Adjust band every 60k km (1.5-2.5 turns past finger tight)
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Flush cooler lines when replacing burnt clutches
Pro Tip: Check extension housing bushing wear – causes output shaft vibration at highway speeds.

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Four-wheel drive TW-40LS
,2017 model TW-40LS
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