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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1225 (Automatic Transmission - 2ML70 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information and Procedures >> Noise During 3-4 or 4-3 Shifts

Noise During 3-4 or 4-3 Shifts

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
1-3 Clutch Hub Assembly (412)
  • Inspect hub assembly, and apply plate for wear or damage.
  • Inspect for damaged or worn 1-3 clutch backing plate.
4th Clutch Hub Assembly (402)
  • Inspect hub assembly, and apply plate for wear or damage.
  • Inspect for damaged or worn 4th clutch backing plate.