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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Automatic Transmission - 6L90 (MYD) - Diagnostic Information And Procedures) >> 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 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
4 - 5 - 6 Clutch (with Output Carrier Shaft and Dampener) Hub Assembly (58)
  • Inspect hub assembly (475), dampener (476), and apply plate (477) for wear or damage.
  • Inspect for damaged or worn 4 - 5 - 6 clutch backing plate (432).
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