Front, Rear, Transfer Case Fluids

[1990ss]

I'm thinking about changing my front and rear diff. and transfer case fluids on my '08 Max. Does anyone know about how many quarts I need for each one?

 

Also, I'm wondering what kind of gear oil to use for the front diff. My owners manual says to use 80/90 for 1500 trucks and 75/90 synthetic for 1500hd trucks. Is a Vortec Max considered a 1500hd or not? Or does it really make that big of a difference if I use 80/90 or 75/90 synthetic?

[MS3DALE]

No,The VortecMAX is not considered an HD.

 

Service Information

2008 Chevrolet Silverado - 4WD | Sierra, Silverado (VIN C/K) Service Manual | General Information | Maintenance and Lubrication | Specifications | Document ID: 1831479

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Approximate Fluid Capacities

See Fluid and Lubricant Recommendations for more information. All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Recheck fluid level after filling.

 

Application

Specifications

 

Metric

English

 

Axle Capacities

 

Front Axle 1500 Series (8.25")

1.43 liters

1.51 quarts

 

Front Axle 2500 Series (9.25")

1.73 liters

1.83 quarts

 

Rear Axle 1500 Series without RPO AXN (8.6")

2.03 liters

2.15 quarts

 

Rear Axle 1500 Series with RPO AXN (9.5" LD)

2.6 liters

2.75 quarts

 

Rear Axle 2500 Series (9.5" HD)

2.6 liters

2.75 quarts

 

Rear Axle 2500 Series with RPO LY6 (10.5" )

2.6 liters

2.75 quarts

 

Rear Axle 2500 Series with RPO LMM (11.5")

3.0 liters

3.17 quarts

 

Rear Axle 3500 Series (11.5")

3.0 liters

3.17 quarts

 

Cooling System

 

4.3L V6 Automatic

15.6 liters

16.5 quarts

 

4.8L V8 Automatic

16.0 liters

16.9 quarts

 

5.3L V8 Automatic

16.0 liters

16.9 quarts

 

6.0L V8 Automatic - 1500 Series

15.9 liters

16.8 quarts

 

6.0L V8 Automatic - 2500, 3500 Series

16.4 liters

15.5 quarts

 

6.6L Diesel

23.4 liters

24.7 quarts

 

Engine Oil with Filter

 

4.3L V6

4.3 liters

4.5 quarts

 

4.8L V8, 5.3L V8, and 6.0L V8

5.7 liters

6.0 quarts

 

6.6L V8 Turbo Diesel, RPO LMM

9.5 liters

10.0 quarts

 

Fuel Tank

 

1500 Series Standard and Short Box

98.0 liters

26.0 gallons

 

1500 Series Long Box

128.7 liters

34.0 gallons

 

2500 Series Standard Box

98.0 liters

26.0 gallons

 

2500 and 3500 Series Long Box

128.7 liters

34.0 gallons

 

3500 Series Chassis Cab

189.0 liters

50.0 gallons

 

3500 Series Chassis Cab - Front Tank

102.0 liters

27.0 gallons

 

3500 Series Chassis Cab - Rear Tank

87.0 liters

23.0 gallons

 

Automatic Transmission Fluid

 

4L60-E

4.7 liters

5.0 quarts

 

4L70-E

4.7 liters

5.0 quarts

 

6L80-E

5.7 liters

6.0 quarts

 

6L90-E

7.0 liters

7.4 quarts

 

Transfer Case Fluid

1.5 liters

1.6 quarts

 

© 2009 General Motors Corporation. All rights reserved.

[MS3DALE]

Service Information

2008 Chevrolet Silverado - 4WD | Chevrolet Silverado Owner Manual | Maintenance Schedule | Maintenance Schedule | Maintenance | Document ID: 1907135

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Recommended Fluids and Lubricants

This maintenance section applies to vehicles with a gasoline engine. If your vehicle has a diesel engine, see the maintenance schedule section in the DURAMAX® Diesel manual.

 

Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer/retailer.

 

Usage

Fluid/Lubricant

 

Engine Oil

Engine oil which meets GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines starburst symbol. SAE 5W-30 is best for the vehicle. (GM Part No. 12345610)

If you are in an area of extreme cold, where the temperature falls below -20°F (-29°C), use either an SAE 5W-30 synthetic oil or an SAE 0W-30 oil. Both provide easier cold starting and better protection for the engine at extremely low temperatures. These numbers on an oil container show its viscosity, or thickness. *DO NOT use other viscosity oils such as SAE 20W-50*

 

Engine Coolant

50/50 mixture of clean, drinkable water and use only DEX-COOL® coolant. See Engine Coolant (GM Part No. 12346290)

 

Hydraulic Brake System

Delco® Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid.

 

Windshield Washer

Optikleen® Washer Solvent (GM Part No. 1051515)

 

Power Steering System

GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186).

 

Automatic Transmission

DEXRON®-VI Automatic Transmission Fluid (GM Part No. - Qt.#88861003 - Gallon #88861045)

 

Key Lock Cylinders

Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).

 

Floor Shift Linkage

Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB.

 

Chassis Lubrication

Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

 

Front Axle (1500 Series) - Four-Wheel Drive

SAE 80W-90 Axle Lubricant (GM Part No. U.S. 89021671, in Canada 89021672).

 

Front Axle (1500 HD, 1500 AWD, 2500, 2500 HD, and 3500 Series)

SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115.

 

Rear Axle

SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115.

 

Transfer Case (Four-Wheel Drive)

DEXRON®-VI Automatic Transmission Fluid (GM Part No. - Qt.#88861003 - Gallon #88861045)

 

Front Axle Propshaft Spline or One-Piece Propshaft Spline (Two-Wheel Drive with 4-Speed Auto. Trans.)

Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830.

 

Rear Driveline Center Spline

Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

 

Hood Hinges

Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).

 

Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seats, and Fuel Door Hinge

Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).

 

Tailgate Handle Pivot Points, Hinges, Latch Bolt, and Linkage

Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).

 

Weatherstrip Conditioning

Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. U.S. 12345579, in Canada 992887).

 

Weatherstrip Squeaks

Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287, in Canada 10953437).

 

© 2009 General Motors Corporation. All rights reserved.

[1990ss]

Thanks for all the info.

[1990ss]

Do you think there would be any harm or any advantages in putting the 75W-90 synthetic oil in the front axle and synthetic oil in the transfer case?