![]() |
|
|
|||||||
| Register | Home | Forum | Active Topics | Media Gallery | Mark Forums Read |
![]() |
|
|
LinkBack | Thread Tools | Display Modes |
|
|
#1 (permalink) |
|
1.8 Liter ECOTEC
Join Date: Mar 2007
Location: Kendall, NY
Drives: 2004 Silverado Z-71 ECSB
2007 Ski-Doo 500SS
Posts: 30
|
Transfer case fluid change
I am preparing to do a fluid change on my 04 Silverado. I plan on doing the tranny, both diffs and the transfer case. I am going to use synthetic oils and lubes but the manufacturer has no recommendation for my transfer case (NVG 246-NP8). I have the push button 4WD. They list a GM part number (12378508) for this transfer case. I tried looking the part number up online but got no definitive answers. Any thoughts on this? I was going to see if there was a tag on the transfer case to see what it says for lube. Thanks.
|
|
|
|
| Sponsored Links | |
Advertisement |
|
|
|
#2 (permalink) |
|
2.2 Liter ECOTEC
Join Date: Jul 2006
Location: Stillwater, Oklahoma
Drives: 2000 GMC Sierra Z71
Posts: 76
|
Re: Transfer case fluid change
I had the same problem with my 2000 GMC Sierra. The manual had no recommendations for the transfer case. I called a dealership, and they told me to use Dexron III (Transmission Fluid). On the other hand, our transfer case on the Duramax has to use super expensive GM Transfer Case lube.
__________________
Current Ride: 2000 GMC Sierra Z71 Previous Ride: 1989 Toyota Pickup Farm Vehicles: 2006 Chevy Silverado 3500 2001 Chevy Silverado 2500HD 1992 Chevy K2500HD
|
|
|
|
|
|
#3 (permalink) |
|
GMI Staff Member
Join Date: Apr 2005
Location: Texas Hill Country
Drives: 07' GMC CREW CAB
08' GMC X-CAB
Posts: 3,042
|
Re: Transfer case fluid change
Can vary depending on type of t/case. If you want to PM me the last 8 of your VIN I can tell you which. Some use transmission fluid, some use what GM calls Autotrac fluid, and some use manual transmission/transfer case fluid.
DOH! See you listed you case, hold on. OK, the fluid part # you listed is for Autotrak-II fluid which goes in that t/case. Is that the info you wanted?
__________________
2007 GMC Sierra CC Stealth Gray 2008 GMC Sierra XCab Z-71 4x4 Onyx Black 2004 GTO Phantom Black Metallic- GONE - ![]() 1998 GMC Sonoma Cherry Red Metallic - GONE - ![]() ![]() GM/ASE Certified Service Consultant MOE Platinum 04-05-06-07 "Contrary to common belief, planning is complicated and is not run by complete idiots, so you'll just have to trust that the decisions were made on good information that's not made available to you." Last edited by shadams : 03-14-2007 at 03:41 PM. |
|
|
|
|
|
#6 (permalink) |
|
1.8 Liter ECOTEC
Join Date: Mar 2007
Location: Kendall, NY
Drives: 2004 Silverado Z-71 ECSB
2007 Ski-Doo 500SS
Posts: 30
|
Re: Transfer case fluid change
Thanks for the info. Now that I have that cleared up how do I tell which ring gear I have in the rear end? My truck has 3.73 ratio. And how do I tell which tranny pan i have on my truck deep or shallow and if it is a reusable gasket?
Last edited by weo38 : 03-15-2007 at 09:45 AM. |
|
|
|
|
|
#7 (permalink) |
|
GMI Fixed Ops Contributor
Join Date: Sep 2004
Posts: 8,942
|
Re: Transfer case fluid change
You have the 8.6" rear diff with Posi & 3.73 ratio...both diffs use 75w90 synthetic...
Your transmission is a deep pan...oe# for the transmission service kit is# 24208576. You will need two liters of the Auto Trac fluid for the tcase....#12378508
__________________
certified GM Dealer Parts Manager since 1994 GM Dealer Parts employee since 1987 AMC-Jeep-Renault Dealer Parts employee 1987-90 holder of many GM accredations, too numerous to list and not giving a damn! Last edited by GMCSonoma : 03-15-2007 at 09:49 AM. |
|
|
|
|
|
#8 (permalink) |
|
Walking
Join Date: Apr 2008
Posts: 1
|
Re: Transfer case fluid change
In my "2001 Diesel Supplement" manual it says for "manual transfer case" you should use Dexron III. For an "automatic transfer case" use Auto-Trak II. I was confused at first then after a couple of days of research I found out that the meaning of automatic trasfer case was if you have a 'Auto 4X4" button in your truck. In which I do not recall ever seeing one in a full size truck. I have however had one in my wife's 2001 ZR2 Blazer. Weather this is differnt because my truck is a diesel, I have no idea, but manual is manual and automatic is automatic.
Last edited by Headymusk : 04-17-2008 at 09:19 AM. |
|
|
|
| Sponsored Links | |
Advertisement |
|