Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006TRAILBLAZER 4WD V8-6.0L VIN HREPAIR AND DIAGNOSISDIAGRAMSEXPLODED VIEWSAUTOMATIC TRANSMISSION/TRANSAXLESYSTEM DIAGRAMSEALS
2006 Chevrolet TrailBlazer 4WD V8-6.0L VIN H
Seals
2006 Chevrolet TrailBlazer 4WD V8-6.0L VIN HSECTION Seals
Component Location
Seals:
3 - Pump to Case Bolt O-Ring
5 - Oil Seal - Pump to Case
18 - Oil Seal Ring - 2nd Apply Piston-Outer
19 - Oil Seal Ring - 2nd Apply Piston-Inner
21 - O-Ring Seal
26 - Oil Seal Ring - 4th Apply Piston-Outer
27 - O-Ring Seal - 2-4 Servo Cover
30 - Case Extension to Case Seal
34 - Case Extension Oil Seal Assembly - Model Dependent
37 - O-Ring Seal - Speed Sensor to Case Extension - Model Dependent
230 - Oil Seal Ring - Stator Shaft
243 - Oil Seal Assembly
249 - Input Seed Sensor, or Input Speed Sensor Hole Plug O-ring - Model Dependent
608a - Reverse Input Clutch Seal - Inner
608b - Reverse Input Clutch Seal - Outer
618 - O-Ring Seal - Turbine Shaft/Selective Washer
619 - Oil Seal Ring - Solid
622 - O-Ring Input to Forward Housing Seal
623 - 3rd and 4th Clutch Piston
630 - Forward Clutch Piston
632 - Overrun Clutch Piston
636 - Input Housing to Output Shaft Seal
691 - Output Shaft - Model Dependent Seal
696a - Low and Reverse Clutch - Outer Seal
696b - Low and Reverse Clutch - Center Seal
696c - Low and Reverse Clutch - Inner Seal
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.