Truck Forum - Truck Mod Central Synthetic Advantage

Go Back   Truck Forum - Truck Mod Central > LET'S TALK TRUCKS! > TMC TECHNICAL > Lubrication & Maintenance

Sponsored Ads
Register to remove these ads.

Lubrication & Maintenance

NVG-246 Transfer Case Oil Change


This is a discussion on NVG-246 Transfer Case Oil Change within the Lubrication & Maintenance forums, part of the TMC TECHNICAL category!
I'm doing my 100,000 miles fluid change. My truck is a 2006 Chevrolet Silverado Z71, it has the Auto 4WD ...

Fluid Changes / Lubrication / Preferences / Procedures / More

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  Go to top #1 (permalink)  
Old 01-15-2010, 01:19 AM
Bigredmariner's Avatar
Admin 
  
 
Real Name: J-rod
Join Date: May 2009
Location: United State of Texas
Age: 45
Posts: 36,919
Vehicles
NVG-246 Transfer Case Oil Change

I'm doing my 100,000 miles fluid change. My truck is a 2006 Chevrolet Silverado Z71, it has the Auto 4WD feature with the pushbutton controls. My Transfer Case is a New Process Gear 246. You can locate the tag on the rear of the case to determine what you have.

Click the image to open in full size.

GM is the sole source for lubricants on these transfer cases, you will need to go to your local dealer for the lubes. I went to my dealership and provided them with the VIN from my truck and they gave me 2 quarts of the special oil. Well they didn't give it to me but it was relatively inexpensive.

GM Auto-Trak II Transfer Case Fluid.

Click the image to open in full size.

Get access to the transfer case and find the drain plug. In some cases you may have to remove the Transfer Case skid plate. Mine had plenty of room and I didn't have to remove it.

Click the image to open in full size.

Use an 18mm combination wrench or socket and remove the drain plug. Have a drain pan handy to catch the oil. Remove the Fill plug and clean both plugs up. These plugs are Aluminum so clean them good and apply a little pipe sealant to the threads. After the oil has drained out completely install the Drain plug and tighten to 18 ft.lbs. Use a pump like this, purchased from any parts store, this one cost me $10 at O'Reilly's.

Click the image to open in full size.

Use the pump and pump oil into the case until it is level with the fill plug hole. It will take almost the entire 2 quarts. Install the fill plug, tighten to 18 ft. lbs. and clean up. Not much to it.
__________________
Support Your TMC Sponsors!Click the image to open in full size.
Reply With Quote
  Go to top #2 (permalink)  
Old 01-15-2010, 07:00 AM
drperry's Avatar
Fox 1! Fox 2! Fox 3!
 
 
Real Name: Sinned
Join Date: Sep 2009
Location: Grande Prairie, Alberta, Canada
Posts: 11,544
FYI the transfer case will send the fluid flying pretty far back when you remove that drain plug...

My Blazer sent it a good 2 - 3 feet
__________________
Reply With Quote
  Go to top #3 (permalink)  
Old 01-15-2010, 07:09 AM
Black02Silverado's Avatar
   
 
Real Name: Nick
Join Date: Jul 2009
Location: Half way between here and there.
Posts: 19,168
Vehicles
Sweet, not much has changed I see from my 02 to your model Jarrod.

I wonder how many out there put their trucks in 4wheel mode once in a while to keep all the fluids circulated?

Jarrod, did you run yours in 4 wheel for a little bit before you changed out the T-Case? It probably would be a good thing just to get what can be put into suspension in the oil so it drains out when you pull the plug.
__________________
AMSOIL Synthetic Lubricants & Filtration Systems, Click Here
Wholesale pricing available!


Click the image to open in full size.
Reply With Quote
  Go to top #4 (permalink)  
Old 01-17-2010, 05:32 PM
merlin5577's Avatar
Work harder, others on welfare depend on you!
 
Real Name: Robert
Join Date: Aug 2009
Location: Taunton, MA
Age: 29
Posts: 335
Send a message via AIM to merlin5577 Send a message via Yahoo to merlin5577
Nice write up J-Rod, thanks!

Quote:
Originally Posted by Black02Silverado View Post
I wonder how many out there put their trucks in 4wheel mode once in a while to keep all the fluids circulated?

Jarrod, did you run yours in 4 wheel for a little bit before you changed out the T-Case? It probably would be a good thing just to get what can be put into suspension in the oil so it drains out when you pull the plug.
A good point. Should use it once a month or so just to keep the fluid moving through all the gears.

Quote:
Originally Posted by drperry View Post
FYI the transfer case will send the fluid flying pretty far back when you remove that drain plug...

My Blazer sent it a good 2 - 3 feet


Dont put the catch can directly under the transfer case, you want it 1-2 feet behind it. When you pull the drain plug..... Comes out like a fire hose.
__________________

My Trucks;
2003 Chevrolet Silverado K2500HD 4X4 6.6L w/Allison 1000
1997 GMC Suburban K1500 4X4 5.7L w/4L60-E

Quote:
If you dont stand behind our troops, feel free to stand in front of them.
Reply With Quote
  Go to top #5 (permalink)  
Old 07-28-2011, 01:14 PM
Black02Silverado's Avatar
   
 
Real Name: Nick
Join Date: Jul 2009
Location: Half way between here and there.
Posts: 19,168
Vehicles
I'm planning on changing mine out either tonight or this weekend. Figured I would post and bump this for any newbys and a reminder that this fluid needs changed out at least once if you are close to 100k miles.
__________________
AMSOIL Synthetic Lubricants & Filtration Systems, Click Here
Wholesale pricing available!


Click the image to open in full size.
Reply With Quote
  Go to top #6 (permalink)  
Old 08-10-2011, 05:58 PM
Black02Silverado's Avatar
   
 
Real Name: Nick
Join Date: Jul 2009
Location: Half way between here and there.
Posts: 19,168
Vehicles
I changed out my T case fluid and sent a sample in for analysis, it had 79k miles on it. I'm interested to see the results.
__________________
AMSOIL Synthetic Lubricants & Filtration Systems, Click Here
Wholesale pricing available!


Click the image to open in full size.
Reply With Quote
  Go to top #7 (permalink)  
Old 11-16-2011, 03:57 PM
Artu714's Avatar
I'm NEW... What now?
 
Join Date: Feb 2010
Posts: 17
Re: NVG-246 Transfer Case Oil Change

Quote:
Originally Posted by Black02Silverado View Post
I changed out my T case fluid and sent a sample in for analysis, it had 79k miles on it. I'm interested to see the results.
Any results yet?
Reply With Quote
  Go to top #8 (permalink)  
Old 11-16-2011, 04:00 PM
Boilerup15's Avatar
Hate Milk! Got Beer?
  
 
Real Name: Jon
Join Date: Jan 2010
Location: Warren, Indiana
Age: 28
Posts: 7,464
Vehicles
Re: NVG-246 Transfer Case Oil Change

I should probably do this with my truck. It is over 100k and I know it hasn't been done before.
__________________
Quote:
Originally Posted by Zembonez View Post
I find life much easier to deal with when you just don't give a shit.
Reply With Quote
  Go to top #9 (permalink)  
Old 11-16-2011, 04:02 PM
buRRp's Avatar
MODERATOR
  
 
Real Name: Lee Briggs
Join Date: Oct 2009
Location: Grand Forks, ND
Age: 38
Posts: 35,640
Vehicles
Re: NVG-246 Transfer Case Oil Change

Quote:
Originally Posted by Artu714 View Post
Quote:
Originally Posted by Black02Silverado View Post
I changed out my T case fluid and sent a sample in for analysis, it had 79k miles on it. I'm interested to see the results.
Any results yet?
__________________
2000 Contour
Reply With Quote
Reply

Bookmarks

Tags
4wd, 4x4, chevrolet, new process gear, new venture gear, nvg-246, sierra, silverado, transfer case, truck, truck mod, z71

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -5. The time now is 03:08 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO