Fluid Leaks from Transmission Output
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Action |
|---|---|
| Faulty or missing seal at output flange/yoke | Install a new seal assembly in the transmission rear cover. Refer to Rear Propeller Shaft Seal Replacement . |
| Machine lead on output flange/yoke seal surface | Replace the flange/yoke. Refer to Differential Drive Pinion Gear Yoke Replacement . |
| Rear cover porosity | Repair or replace the cover. |
| Flange/yoke worn at seal surface | Replace the flange/yoke. Refer to Differential Drive Pinion Gear Yoke Replacement . |
| Insufficient sealant around seal OD | Install a new seal assembly in the transmission rear cover. Refer to Rear Propeller Shaft Seal Replacement . |
| Damaged or missing output bolt washer seal | Replace the output bolt sealing washer. Refer to Differential Drive Pinion Gear Yoke Replacement . |
| Damaged, missing, or loose output flange bolt | Replace and/or torque the output flange bolt. Refer to Differential Drive Pinion Gear Yoke Replacement . |