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 MANUALSCHEVROLET2013AVALANCHE 4WD V8-5.3LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLEDIAGRAMSEXPLODED VIEWS6L45/6L50/6L80/6L90 - AUTOMATIC TRANSMISSIONCOMPONENT LOCATORSEAL LOCATIONS
2013 Chevrolet Avalanche 4WD V8-5.3L
Seal Locations
2013 Chevrolet Avalanche 4WD V8-5.3LSECTION Seal Locations
Seal Locations
5 - A/Trans Fluid Pump Seal
9 - A/Trans Connector Seal
10 - A/Trans Connector (O-ring) Seal
14 - Output Shaft Seal Assembly - 4WD Models
18 - A/Trans Fluid Pump Seal Assembly
19 - A/Trans Fluid Pump Seal Assembly
20 - Center Support Fluid Passage Seal Assembly
25 - A/Trans Fluid Filter Seal Assembly
27 - A/Trans Fluid Pan Gasket
33 - A/Trans Case Extension Seal - 2WD Models
36 - Prop Shaft Front Slip Yoke Oil Seal - 2WD Models
201 - Torque Converter Fluid Seal Assembly
209 - A/Trans Fluid Pump Slide Fluid Seal Ring
210 - A/Trans Fluid Pump Slide (O-ring) Seal
213 - A/Trans Fluid Pump Slide Seal
230 - 1-2-3-4 and 3-5 Reverse Clutch Fluid Seal Ring
238 - 1-2-3-4 and 3-5 Reverse Clutch Fluid Seal Rings - Inner O-rings
412 - 1-2-3-4 Clutch Piston Dam Assembly
416 - 1-2-3-4 Clutch Piston Seal
418 - 3-5 Reverse Clutch Piston Dam (O-ring) Seal
419 - 3-5 Reverse Clutch Piston Inner Seal
422 - 3-5 Reverse Clutch Piston Outer Seal
423 - 1-2-3-4 Clutch Piston Inner Seal
424 - 1-2-3-4 Clutch Piston Housing Seal
425 - 1-2-3-4 Clutch Piston Housing Seal
437 - 4-5-6 Clutch Piston Dam Assembly
439 - 4-5-6 Clutch Piston Assembly
442 - Turbine Shaft Fluid Seal Ring
443 - Turbine Shaft (O-ring) Seal
457 - 2-6 Clutch Piston Assembly
468 - Low Clutch Sprag Seal
470 - Low and Reverse Clutch Piston Assembly
507 - Manual Shift Shaft Seal
510 - Park Pawl Actuator Guide (O-ring) 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.