AWTF60SN transmission 4-5-6 K2 clutch drum 4 clutches 15 spline shaft clutch assembly
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Application: ZF 6HP/8HP or similar, handling 4th-6th gear shifts under high torque (500–700Nm).
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Design:
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15-spline hardened steel shaft (SAE 4140, 60–64 HRC) for direct hub engagement.
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4-clutch pack (3 friction + 4 steel plates, 0.5–0.7mm clearance new).
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Critical Specs:
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Drum OD: 120–125mm, anodized for thermal resistance (max 200°C).
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Spline tolerance: ±0.03mm (wear >0.1mm causes slippage).
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Failure Modes:
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Spline shear (fatigue under abrupt shifts).
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Drum warping (overheat cycles).
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Seal blowout (pressure loss in boost phase).
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Note: Requires low-viscosity ATF (e.g., ZF LG8) for optimal clutch modulation.



4-5-6 K2 transmission clutch drum
,15 spline shaft clutch assembly
,4 clutches transmission parts
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