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.

2010 GMC Yukon XL C2500FACTORY OEM SERVICE PROCEDURE

Transmission Assembly: Remove, Install, and Overhaul

WARNING: This page is about the Yukon XL C1500, 5.3 0, which is a different variant/trim than selected.

TRANS ID - 6L50, 6L80E, 6L90E

Includes: Inspect and replace all necessary components, clean and check Converter, flush Oil Cooler Lines, adjust and road test.

Applies To	Note	Standard Hours	Warranty Hours	Skill Level
RWD, w/o Skid Plate	Includes: Programming.	13.9	10.0	A
RWD, w/Skid Plate	Includes: Programming.	14.2	10.0	A
Combination Procedure: FLYWHEEL: Remove & Replace:
		0.3		C
Combination Procedure: TRANSFER CASE ASSEMBLY: Overhaul:
		4.0		A
Combination Procedure: TRANSFER CASE ASSEMBLY: Replace:
		0.3		C

Factory Service Tools

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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.

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