Brand Name:
FORD
Model Number:
6R80
Typical Faults:
Spline Wear
Symptom: Clunking on acceleration/deceleration
Cause: Micro-movement from torque reversals
Bearing Surface Scoring
Symptom: Whining noise at highway speeds
Trigger: Contaminated fluid or misalignment
Seal Groove Erosion
Symptom: Persistent fluid leaks
Root Cause: Abrasive debris in ATF
Critical Checks:
Runout: >0.08mm requires replacement
Spline Play: >0.2mm rotational movement = fail
Hardness Test: Should be 58-62 HRC
Pro Tip: Always inspect companion flange wear – grooving indicates need for simultaneous replacement.
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