Section 1724 (Automatic Transmission - 2ML70 - Symptom Troubleshooting And Diagnosis): Vibration

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
Lug bolts for the Torque Dampener	Inspect for loose torque dampener lug bolts.
Sun Gear Thrust Washer 1st 2nd and 3rd Positions	Inspect for wear or damage.
Input Shaft Thrust Bearing Assembly (60)	Inspect for wear or damage.
2-3-4 Clutch Hub Thrust Bearing Assembly	Inspect the bearing for wear or damage.
Sun Gear Carrier Assembly - 1st, 2nd and 3rd Positions	Inspect the carrier assembly for damaged pinion gears, thrust washers, pins, and rollers. Inspect for a worn or damaged center support roller bearing assembly. Inspect for damaged thrust bearings. Inspect the carrier assembly for damaged output carrier rear sun gear thrust bearing (captured).
Internal Gear Thrust Bearing Assembly - 2nd Position	Inspect the bearing for wear or damage.