Brand Name:
SUZUKI
Model Number:
TW-40LS
Overview: Aisin-Warner designed 4/5-speed longitudinal transmission for SUV/truck applications (e.g., older Toyota Land Cruiser Prado).
Key Features:
Transfer Case Integration: Full-time 4WD with center differential lock (50:50 split)
Torque Capacity: Rated for 400Nm with reinforced 3-4 clutch pack
Gearset: Simpson planetary with overdrive unit
Common Failures:
3-4 Clutch Burnout: Due to delayed shift timing (P0760 codes)
Transfer Case Chain Stretch: Causes 4WD engagement faults
Valve Body Wear: Particularly shift solenoid B (harsh 2-3 shifts)
Critical Maintenance:
Use Toyota Type T-IV or equivalent
Adjust band every 60k km (1.5-2.5 turns past finger tight)
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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