Suburban 2WD V8-6.0L (2007)
To correct this condition, replace the case cover (channel plate) gaskets (429 and 430). Refer to Unit Repair publication in SI of the appropriate vehicle
being serviced.
Visual inspection of the upper gasket (1) will reveal damage at the referenced area.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
Technical Service Bulletin # 08-07-30-023
Date: 080508
A/T - Fluid Leak From Bell Housing Area
TECHNICAL
Bulletin No.: 08-07-30-023
Date: May 08, 2008
Subject:
4L60-E/4L65-E/4L70‐E Automatic Transmission Fluid Leak from Oil Pump or Bell Housing Area (Replace Torque Converter Hub-to-Oil
Pump Seal Assembly)
Models:
2007-2008 Chevrolet Avalanche, Express, Silverado, Suburban, Tahoe, TrailBlazer
2007-2008 GMC Envoy, Savana, Sierra, Yukon, Yukon XL
2007-2008 HUMMER H2
2007-2008 Saab 9-7X