Stock Fluids

[jjsdk9]

I just bought a 2002 Chevy 2500HD 4x4 Duramax Diesel. The owner did not have a manual for the vehicle but I will get one soon. I was going to change the front and rear diff. and was wondering does the vehicle have a gasket when it comes stock and does anyone know the stock fluid in it. I called Global transmisson inreference to the Allsion transmission and they told me to stay with Dextron 2 or 3 verses 6. Does anyone know what comes stock in the tranfer case and is it a tale that if you use synthetic fluids and do not have a gasket it would leak faster than if you had one.

[dewfpo]

I just bought a 2002 Chevy 2500HD 4x4 Duramax Diesel. The owner did not have a manual for the vehicle but I will get one soon. I was going to change the front and rear diff. and was wondering does the vehicle have a gasket when it comes stock and does anyone know the stock fluid in it. I called Global transmisson inreference to the Allsion transmission and they told me to stay with Dextron 2 or 3 verses 6. Does anyone know what comes stock in the tranfer case and is it a tale that if you use synthetic fluids and do not have a gasket it would leak faster than if you had one.

 

You can use synthetics in every gearbox in this vehicle and not worry about leaks. The Allison came with DexIII in your 2002 and DexVI is backward compatible so you can use it without worry. As well you can use Amsoil's Torque Drive and Allison's Transynd , both of which are better than the DexIII or DexVI (even the synthetic versions) in your Allison Transmission.

 

Can't remember what's in the TC.

 

DEWFPO

[jjsdk9]

I just bought a 2002 Chevy 2500HD 4x4 Duramax Diesel. The owner did not have a manual for the vehicle but I will get one soon. I was going to change the front and rear diff. and was wondering does the vehicle have a gasket when it comes stock and does anyone know the stock fluid in it. I called Global transmisson inreference to the Allsion transmission and they told me to stay with Dextron 2 or 3 verses 6. Does anyone know what comes stock in the tranfer case and is it a tale that if you use synthetic fluids and do not have a gasket it would leak faster than if you had one.

 

You can use synthetics in every gearbox in this vehicle and not worry about leaks. The Allison came with DexIII in your 2002 and DexVI is backward compatible so you can use it without worry. As well you can use Amsoil's Torque Drive and Allison's Transynd , both of which are better than the DexIII or DexVI (even the synthetic versions) in your Allison Transmission.

 

Can't remember what's in the TC.

 

DEWFPO

 

 

 

Thanks for the reply

[Black02Silverado]

Here is a list of what your HD takes. As long as your Tcase isn't a NVG 236/246 then you can use ATF or the Torque-Drive fluid.

 

 

 

2002 CHEVROLET TRUCKS SILVERADO 2500 HD PICKUP 6.6L 8-cyl Engine Code [1] TurboDiesel

 

FILTERS

Oil Filter: EAO52 Absolute Efficiency Oil Filter:

Oil Filter: 57202 WIX 57202 Oil Filter

Air Filter: EAA123 Absolute Efficiency Air Filter:

Air Filter: 46678 WIX 46678 Air Filter

Fuel Filter: 33910 WIX 33910 Fuel Filter [1]

Fuel Filter: P550743 P550743 Fuel Filter

Fuel Filter: P550743 P550743 Fuel Filter [2]

Trans Filter: 58970 WIX 58970 Auto Tran Filter [3]

Trans Filter: P550606 P550606 Hydraulic Filter [4]

Trans Filter: 57701 WIX 57701 Hydraulic Filter [4]

Cabin Filter: 24805 WIX 24805 Cabin Air Filter

 

1. Available until Inventory Depleted

2. New Plastic Version

3. Pan style

4. Spin-on

 

 

LUBRICANTS & FLUIDS

Engine Oil

Grade 1......CI-4

SAE 15W-40 Synthetic Heavy Duty Diesel and Marine Motor Oil

Synthetic Blend 15W-40 Diesel Oil

Synthetic 5W-40 Premium Diesel Oil

Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil

Above 0°F......15W-40, 10W-30[1]

Below 0°F......5W-40[2]

Manual Transmission,NV4500.....GL-4

75W-85[3]

Synthetic Manual Transmission and Transaxle Gear Lube 75W-90

Manual Transmission,ZF S6-650.....SLF[4]

Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)

Automatic Transmission,4L80-E-HD.....AF6

Synthetic Automatic Transmission Fluid

Automatic Transmission,4L80-E.....AF6

Synthetic Automatic Transmission Fluid

Automatic Transmission,1000.....AF6

Synthetic Automatic Transmission Fluid

Differential, Front Full time 4WD.....GLS[5]

Severe Gear 75W-90

Differential, Front Selectable 4WD.....GL-5[6]

All Temps......80W-90

SAE 80W-90 Synthetic Gear Lube

Severe Gear 75W-90

SAE 75W-90 Synthetic Gear Lube

Severe Gear 75W-110

Standard Differential, Rear Others.....GL-5[7]

All Temps......75W-90

Severe Gear 75W-90

Differential, Rear W/ QS4 Axle.....GLS[8][9]

Severe Gear 75W-90

Transfer Case,NVG 261/263.....GLS[10]

Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)

Synthetic Automatic Transmission Fluid

Transfer Case,NVG 149.....GLS[10]

Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)

Synthetic Automatic Transmission Fluid

Transfer Case,NVG 236/246.....SLF[11]

No AMSOIL Product Recommendation

Fluids

Power Steering Fluid.....PS

AMSOIL Universal Synthetic Power Steering Fluid

Brake Fluid.....HB

Series 500 High Performance DOT 3 Brake Fluid

Clutch Fluid.....HB

Series 500 High Performance DOT 3 Brake Fluid

 

1. SAE 15W-40 is preferred.

2. At temperatures below -18 °C (0 °F), use SAE 5W-40 to

improve cold starting.

3. Synthetic gear oil, GM part no. 12346190 or equivalent.

4. GM part no. 12378515.

5. GM part no. 12378557

6. Manufacturer recommends GM part no. 1052271.

7. Synthetic lubricant, GM part no. 12378261,formulated to meet

GM specification 9986115.

8. GM part no. 12378557

9. Do not add friction modifier.

10. GM recommends Part No. 88861800 (Canada 88861801)

or equivalent for manual transmission, transfer

case applications.

11. GM part no. 12378508 (U.S.), 10953626 (CAN).

 

CHASSIS LUBRICATION

Four-wheel drive

11 Fittings, 0 Plugs..........LB

Series 2000 Synthetic Racing Grease

Synthetic GHD Heavy-Duty EP Grease

Synthetic Multi-Purpose Grease NLGI #2

Two-wheel drive

6 Fittings, 0 Plugs..........LB

Series 2000 Synthetic Racing Grease

Synthetic GHD Heavy-Duty EP Grease

Synthetic Multi-Purpose Grease NLGI #2

 

CAPACITIES

Engine, with filter..........10.0 quarts[1]

Cooling System, AT Initial Fill..........20.0 quarts

AMSOIL Antifreeze and Engine Coolant

Cooling System, MT Initial Fill..........21.0 quarts

AMSOIL Antifreeze and Engine Coolant

Automatic Transmission, 4L80-E Initial Fill..........7.7 quarts

Automatic Transmission, 1000 Initial Fill..........7.4 quarts[2]

Automatic Transmission, 4L80-E-HD Initial Fill..........7.7 quarts

Automatic Transmission, Total Fill

4 speed 4L80-E-HD..........14.0 quarts

5 speed 1000..........13.0 quarts

4 speed 4L80-E..........14.0 quarts

Manual Transmission, NV4500 (TOPC)..........7.8 pints

Manual Transmission, ZF S6-650..........13.0 pints

Differential, 8.25 ring gear Amer Front..........3.6 pints

Differential, American 9.25 ring gear Front..........3.6 pints

Differential, with 10.5 ring gear Amer Rear..........5.5 pints

Differential, with 11 ring gear Dana Rear..........8.4 pints

Differential, with 11.5 ring gear Rear..........7.6 pints

Differential, with 8.5 ring gear Amer Rear..........4.9 pints

Differential, with 8.6 ring gear Amer Rear..........4.9 pints

Differential, with 9.5 ring gear Amer Rear..........5.5 pints

Differential, with 9.75 ring gear Rear..........5.9 pints

Transfer Case,NV236/246..........4.0 pints

Transfer Case,NV261/263..........4.0 pints

Transfer Case,NV149..........4.9 pints

 

1. After refill check oil level.

2. DO NOT drain the fluid if only the transmission spin-on oil

filter is being replaced.

 

TORQUES

Oil Drain Plug.....62 ft-lbs

Manual Transmission NV4500 Hex Head

Fill Plug.....30 ft-lbs

Drain Plug.....27 ft-lbs

Manual Transmission NV4500 SQH

Fill Plug.....30 ft-lbs

Drain Plug.....30 ft-lbs

Manual Transmission ZF S6-650

Fill Plug.....26 ft-lbs

Drain Plug.....26 ft-lbs

[Alljackedup408]

lol @ nick. rolling manual the guy is

[BrockwayMT]

lol @ nick. rolling manual the guy is

 

Transfercase would be Dexron III. I don't like the idea of putting Dexron VI in an older Dexron III vehicle because Dex VI is harder on seals.

[jake111]

From another site, the claimed information from Allison is that the older transmissions have seals that may leak if Dex VI is used. I think the cut-off year was 2006, and someone posted these serial numbers (that is, after these are the Dex VI compatible Allison 1000 transmissions).

 

S/N 6310670488 and up for Indianapolis built transmissions, AND...

S/N 6320784373 and up for Baltimore built transmissions used in GM pickups.

 

(Note: the 3rd digit indicates the build location; the sequence number starts after that.)

 

All of these Allisons do very well on synthetics, with Allison's Transynd or other TES-295 considered by many (including Allison) to be the best for any of them. For the older Allisons, a Dex III Synthetic ATF is excellant, too (like Mobil 1 Synthetic ATF Mercon, which now says for "older GM transmissions" in small print on the back because Dex III is no longer licensed).

 

Dex III is also called for in the T-case and synthetic is again a better choice. Some (of us) have switched to Mobil 1 Synthetic 5-30 motor oil, claiming that it quiets it down. The motor oil replacement idea came after it was found that the non-synthetic ATF could vaporize over time. This is a personal decision since it isn't recommended by GM.

 

For the front differential, if you switch to a synthetic GL-5 75-90 gear oil, you should replace the vent with a white cover. Google search "GM with a vent cap in the front diff that may not be compatible with synthetic fluid" (with the quotes) and you'll see more about it.

 

For the front and rear differential, you can use the genuine GM "grapejuice" which is very expensive and might imply it has a secret ingredient (but probably doesn't). Most have been very happy with Mobil 1 75-90 Synthetic Gear Oil.