Chevrolet Silverado / GMC Sierra. Manual - part 777
CASE INSPECTION
Fig. 116: Inspecting Case
Courtesy of GENERAL MOTORS CORP.
J 37212 Front Output Shaft Seal Installer
(6L50)
J 38693 Seal Installer (6L80). See Special
Tools.
J 45000 Seal Remover. See Special Tools.
Callout
Component Name
NOTE:
After cleaning the transmission components, allow to air dry. Do not use cloth or paper towels in
order to dry any transmission components. Lint from the towels can cause component failure.
NOTE:
Do not reuse cleaning solvents. Previously used solvents may deposit sediment which may damage
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
OUTPUT SHAFT DISASSEMBLE
Preliminary Procedures
1. Thoroughly clean the transmission case assembly, including case threads, with clean
solvent.
2. Clean gasket sealing surfaces. Remove all residual gasket material.
3. Inspect all threaded holes. If necessary, repair any thread damage.
the component.
1
Front Case Sealing Surface
2
Manual Shift Shaft Seal
Tip: Refer to Manual Shift Shaft Seal
Replacement.
3
Center Support Fluid Passage Seal Bores
4
Fluid Pan Sealing Surface
5
Case Plugs
6
Output Shaft Bushing or Bearing (model specific)
7
Rear Case Sealing Surface
8
Fill Tube Bore
9
Electrical Connector Passage Sleeve Bore
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 117: Output Shaft Disassemble
Courtesy of GENERAL MOTORS CORP.
Callout
Component Name
Tip: Inspect each component and replace as necessary.
1
Output Carrier Internal Gear Retaining Ring
2
Output Carrier Assembly
3
Output Carrier Internal Front Gear
4
Output Carrier Internal Gear Retaining Ring
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
OUTPUT SHAFT ASSEMBLE
Fig. 118: Output Shaft Assemble
Courtesy of GENERAL MOTORS CORP.
5
Output Carrier Internal Gear Spacer
6
Output Carrier Internal Rear Gear
7
Output Carrier Thrust Bearing Assembly
8
Output Shaft Assembly
Callout
Component Name
1
Output Carrier Internal Rear Gear
NOTE:
Install the gear chamfer side down. Failure to
install the gear chamfer side down may result in
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado