Do i need to add limited slip additive to this oil for my 2015 gmc positrac rear end?

Look in your Owner's manual and it should give you a part number. If it's the same part number you don't need to add anything. If you need that then you would buy the oil with it already added to it

Is this full synthetic?

Says on the back it’s synthetic.

How much fluid is needed?

3 qts for 12 bolt rear differential

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🔧 Keep Your Ride Smooth and Secure!

📏 PERFECT FIT - Vehicle-specific formulation ensures optimal performance.
⚖️ LIGHTWEIGHT DESIGN - Weighs only 907 g for easy handling and application.
🌍 ECO CONSCIOUS CHOICE - Manufactured by GM, a leader in sustainable automotive solutions.
🔧 ENGINEERED FOR EXCELLENCE - Designed specifically for 2014 Silverado and Sierra rear axles.
🛡️ LONG LASTING PROTECTION - Superior oxidation resistance promotes longer seal life.

The General Motors Genuine GM 19300457 SAE 75W-85 Rear Axle Fluid is a high-performance lubricant designed specifically for the rear axles of 2014 Silverado and Sierra models. With a viscosity rating of 75W-85, this 1-quart fluid offers superior oxidation resistance, ensuring longer seal life and optimal vehicle performance.

₨1976

Duties & taxes incl.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Manufacturer	GM
Brand	General Motors
Model	19300457
Product Dimensions	23.62 x 6.86 x 7.62 cm; 907 g
Item model number	19300457
Exterior	Painted
Manufacturer Part Number	19300457
OEM Part Number	19300457
Item Weight	907 g
Viscosity	75W-85

General MotorsGenuine GM 19300457 SAE 75W-85 Rear Axle Fluid - 1 Quart

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