Drive Train Fluid Change

[Sinkhole]

Hey all. I just tripped 50K on my truck. Its time for me to change the transmission & transfer case fluids as well as the front differential and engine oil. The rear diff. was done less than 2K ago. I know my truck take Dexron III for the trans. and transfer case (manual TC) but I can't seem to find a quantity of fluid for either. I was also know the front diff. takes 80w-90 gear oil. But can I go with a 75w-90 synthetic in the front diff. I was planning on running Royal Purple in both diffs. and either Royal Purple or Mobile Dexron VI in the transmission & TC, but if I can't change out the front to 75w-90, I guess I'll run Mobilube HD Plus 80w-90. Unless someone has a better option.

If anyone could help me out on the fluid quantities and if some one knows if I can run 75w-90 synthetic in the front diff. I'd appreciate it.

[Black02Silverado]

You can run 75w-90 in the front diff no problem. The front will take 2qts. The transfer case will take 2qts and the transmission will take 5qts. Running Dexron VI in the transfer case I'm not 100% sure about if it is another brand other than AMSOIL's ATF. I know that Dexron VI is reverse compatible for older transmissions but I have not seen it listed anywhere that it is for a gear box application such as a transfer case. AMSOIL's will work in both but not sure if Royal Purples would work. You would have to contact them for that application.

 

I know on my 02's front diff you filled it till it ran out the fill hole which worked out to be 3.6 pints, but for your year model it is showing that you are supposed to fill to no higher than .62" from bottom of the fill hole for 8.25 ring gear and 1/4" form the fill hole with a 9.25 ring gear.

 

 

2005 CHEVROLET TRUCKS SILVERADO 1500 PICKUP 5.3L 8-cyl Engine Code [T]

 

FILTERS

Oil Filter: EAO32 Absolute Efficiency Oil Filter:

Oil Filter: 51042 WIX 51042 Oil Filter

Air Filter: PF7050P INJEN-AMSOIL Air Intake System

Air Filter: EAA123 Absolute Efficiency Air Filter: [1]

Air Filter: 42487 WIX 42487 Air Filter [1]

Air Filter: EAA123 Absolute Efficiency Air Filter: [2]

Air Filter: 42488 WIX 42488 Air Filter [2]

Trans Filter: 58608 WIX 58608 Auto Tran Filter [3]

Trans Filter: 58847 WIX 58847 Auto Tran Filter [4]

Trans Filter: 58904 WIX 58904 Trans Filter [5]

 

1. Light Duty Version

2. Heavy Duty Version

3. 4L80E

4. 4L60E Deep pan

5. 4L60E Shallow pan

 

NGK PLUGS & WIRE SETS

PLUG GPSERIES TR5GP

PLUG IXIRIDIUM TR5IX NGK7397

PLUG PREMIUMPLATINUM PTR5D-10 *

PLUG PRERIUMIRIDIUM ITR5F13 ^

PLUG VPOWER TR5 NGK2238

WIRESET WIRESET RC-GMX102 NGK51430 [1]

 

1."Use w/Coils Stamped 19005218 (9.2"" Leads)"

 

TRICO WIPER BLADES

Blade Class Driver Passenger Rear

NEOFORM T16220 T16220

EXACTFIT T221 T221

WINTER T37225 T37225

 

LUBRICANTS & FLUIDS

Engine Oil

Grade 1......API*

SAE 0W-30 Synthetic Signature Series Oil

SAE 5W-30 Synthetic Motor Oil

SAE 5W-30 XL Synthetic Motor Oil

All Temps......5W-30[1]

Automatic Transmission,4L60-E.....AF6

Synthetic Automatic Transmission Fluid

Synthetic Low Viscosity Automatic Transmission Fluid

Standard Differential, Front Full time 4WD.....GL-5[2]

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

Severe Gear 75W-90

Differential, Front Selectable 4WD.....GL-5[3]

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

SAE 80W-90 Synthetic Gear Lube

Severe Gear 75W-90

SAE 75W-90 Synthetic Gear Lube

Severe Gear 75W-110

Differential, Rear Others.....GLS[4]

Severe Gear 75W-90

Differential, Rear W/ QS4 Axle.....GLS[4][5]

Severe Gear 75W-90

Transfer Case,NVG 149-NP3.....GLS[6]

Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)

Synthetic Automatic Transmission Fluid

Transfer Case,NVG 261-NP2.....GLS[6]

Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)

Synthetic Automatic Transmission Fluid

Transfer Case,NVG 263-NP1.....GLS[6]

Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)

Synthetic Automatic Transmission Fluid

Transfer Case,NVG 246-NP8.....SLF[7]

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 5W-30 is preferred.

2. Synthetic lubricant; GM part no. 12378261, specification

No. 9986115.

3. Manufacturer recommends GM part no. 1052271 or equivalent

4. GM part no. 12378557

5. Do not add friction modifier.

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

or equivalent for manual transmission, transfer

case applications.

7. GM part no. 12378508 (U.S.), 10953626 (CAN)or equivalent.

 

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..........6.0 quarts[1]

Cooling System, W/ AT Initial Fill..........15.0 quarts[2]

AMSOIL Antifreeze and Engine Coolant

Cooling System, W/ AT Initial Fill..........17.0 quarts[3]

AMSOIL Antifreeze and Engine Coolant

Automatic Transmission, 4L60-E Initial Fill..........5.0 quarts

Automatic Transmission, Total Fill

4 speed 4L60-E..........11.0 quarts

Differential, with 8.25 ring gear Front..........NA[4]

Differential, with 9.25 ring gear Front..........NA[5]

Differential, with 8.6 ring gear Rear..........NA[6]

Differential, with 9.50 ring gear Rear..........NA[7]

Differential, with 9.75, 10.50 ring gear Rear..........NA[8]

Transfer Case,NVG 149-NP3..........4.4 pints

Transfer Case,NVG 246-NP8..........4.0 pints

Transfer Case,NVG 261-NP2..........4.0 pints

Transfer Case,NVG 263-NP1..........4.0 pints

 

1. After refill check oil level.

2. With AC & Engine Driven cooling system.

3. With AC & Electric cooling fan system.

4. Fill no higher then 0.62 inch below plug hole.

5. Fill no higher then 1/4 inch below plug hole.

6. Fill no higher then 0.6-1.6 inch below plug hole.

7. Fill no higher then 0.4 inch below plug hole.

8. Fill no higher then 1/4 inch below plug hole.

 

TORQUES

Oil Drain Plug.....18 ft-lbs

Transfer case NVG263-NP1

Fill Plug.....15 ft-lbs

Drain Plug.....15 ft-lbs

Transfer case NVG261-NP2

Fill Plug.....15 ft-lbs

Drain Plug.....15 ft-lbs

Transfer case NVG246-NP8

Fill Plug.....15 ft-lbs

Drain Plug.....15 ft-lbs

Transfer case NVG149-NP3

Fill Plug.....15 ft-lbs

Drain Plug.....15 ft-lbs

[ukrkoz]

careful with t-case. GM is anal about their specific fluid use in it.

for motor, best is Amsoil. I tried RP, but Amsoil beats it easy. I have done 2 15 000 oil changes and am headed into 17 000. for what it is, it is warranted for 25K.

do use synth Amsoil in rear diff and front diff.

I experimented with expensive ATFs and somehow feel that it is waste of $$ for this truck. I can't explain. maybe the way it shifts, or something. just feels like it wants thicker ATF, and synth lubes that are not. shifts very smoothly on cold ATF, but when it warms up, it starts kicking. see what I mean - more viscous feels to serve better.

i have pan and filter job coming next weekend, i'll pour regular DIII in, will see what happens.

[alaska511]

I just put Mobil 1 75w90 in mine today.

 

I have used this in every GM 4wd I have had for the last 15 years with no issues.

[smattei14]

www.amsoil.com

 

look up your truck...

 

and you are good for 50,000 miles...

 

might pay a little bit more for it..but its worth it...

[Irv]

I just put Mobil 1 75w90 in mine today.

 

I have used this in every GM 4wd I have had for the last 15 years with no issues.

 

X2, Mobil-1 all the way!

Not a big fan of Amsoil, I have had way to many consumption issues for it to be just a freak thing!

[Z45]

fyi................

 

No one makes an alternative to GM Auto Trac II transfer case fluid. Amsoil was working on reverse engineering it back in 2005 but determined the demand was just not there for a TC fluid. It is not ATF but a special lube. The difference may not be so much as what type BUT what chemicals the lube is made of. Wrong lube could have chemical reaction with interior components of the TC. That's often the reason why a special lube is required.

 

NBS styles from 2007 up can use Dexron VI in the transfer case.

 

[gave20]

I like Mobil 1 as well but I would change every 25K. I'm still getting a decent amount of filings in the front diff.

[Sinkhole]

fyi................

 

No one makes an alternative to GM Auto Trac II transfer case fluid. Amsoil was working on reverse engineering it back in 2005 but determined the demand was just not there for a TC fluid. It is not ATF but a special lube. The difference may not be so much as what type BUT what chemicals the lube is made of. Wrong lube could have chemical reaction with interior components of the TC. That's often the reason why a special lube is required.

 

NBS styles from 2007 up can use Dexron VI in the transfer case.

 

Thanks for the info all.

My transfer case takes Dexron III according to my owners manual. I do not have the Automatic Transfer Case. The manual lists GM Auto Trac II Fluid for the automatic transfer case and Dexron III for the manual transfer case.

I've been using Mobile 1 oil since I got the truck and ran all Mobile 1 fluids in my '03 Impala Just figured I give Royal Purple a try after hearing so many good things about it.