Notices
GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

Make a 4WD an AWD How?

Thread Tools
 
Search this Thread
 
Old 05-07-2007, 09:21 PM
  #1  
Teching In
Thread Starter
 
superchargn's Avatar
 
Join Date: May 2007
Location: Kansas
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default Make a 4WD an AWD How?

Anybody out there know how to convert a 1500 silverado 4x4 into an AWD like the SS, C3, or denalis? Thanks
Old 05-07-2007, 09:39 PM
  #2  
TECH Senior Member
iTrader: (10)
 
nonnieselman's Avatar
 
Join Date: Oct 2004
Location: Crystal Springs, MS
Posts: 14,068
Likes: 0
Received 2 Likes on 2 Posts
Default

Leave it in 4HI?

haha jk...

can you explain a litte more?
Old 05-07-2007, 10:00 PM
  #3  
TECH Fanatic
iTrader: (12)
 
Join Date: Mar 2005
Location: Massachussetts
Posts: 1,513
Likes: 0
Received 6 Likes on 2 Posts
Default

what else needs to be explained? and I believe it would just take a new transfer case and prob a tune of some sort, that should be it.
Old 05-07-2007, 10:20 PM
  #4  
TECH Fanatic
 
treyZ28's Avatar
 
Join Date: Oct 2002
Location: Dallas, North Mexico
Posts: 1,842
Likes: 0
Received 0 Likes on 0 Posts
Default

I was told you needed some sort of control module or something when I looked into it. While everyone told me it was completely mechanical- it is computer controlled.
Old 05-07-2007, 10:35 PM
  #5  
TECH Fanatic
iTrader: (9)
 
KevinF56's Avatar
 
Join Date: Aug 2006
Location: North of Boston
Posts: 1,726
Likes: 0
Received 1 Like on 1 Post
Default

i think you need the AutoTrac (or whatever its called) transfer case. basically one out of an SS or other truck using AWD. and yeah you'd probably need a tune of some sort.

maybe go over to silveradoss.com and ask them?
Old 05-07-2007, 11:49 PM
  #6  
On The Tree
 
willymac's Avatar
 
Join Date: Feb 2007
Location: Moss Bluff, LA
Posts: 138
Likes: 0
Received 0 Likes on 0 Posts
Default

i'm not 100% positive but i believe the front diff is different, dont really see why it would be but i've heard it was
Old 05-08-2007, 02:56 PM
  #7  
TECH Enthusiast
 
Wide Open's Avatar
 
Join Date: Jan 2004
Location: Ohio
Posts: 700
Likes: 0
Received 0 Likes on 0 Posts
Default

You need the transfer case and front diff from a Escalade, Denali, or Silverado SS. The Autotrac version won't work because it requires input from speed sensors to engage the front clutches and the front diff is a part time design.
My NP8 transfer case doesn't have any electronic interface, it is strictly mechanical. Not sure how it works, maybe torque sensing clutches?
Old 05-08-2007, 08:06 PM
  #8  
TECH Fanatic
iTrader: (1)
 
1Bear's Avatar
 
Join Date: Aug 2006
Location: Jones Creek, Texas
Posts: 1,410
Likes: 0
Received 8 Likes on 8 Posts
Default

The front differential is different between the AWD and 4wd trucks, the AWD has a one piece axel, without the engagement solenoid. The transfercase in the C3's, SS's and early model Escalades and Yukon Denali's are NVG 149's, which are mechanical with a viscous coupling. The later model Escalades and Yukon Denali's use a Borg Warner transfer case that works as a center differential in conjunction with the traction control "which may be why you were told you would need contoller to make work". The NVG 149 would surely be the one to use.
Old 05-08-2007, 08:25 PM
  #9  
TECH Enthusiast
 
Wide Open's Avatar
 
Join Date: Jan 2004
Location: Ohio
Posts: 700
Likes: 0
Received 0 Likes on 0 Posts
Default

So how do the newer transfer case and traction control work together?
Do the NVG 149 cases have any electrical control?
Old 05-08-2007, 09:20 PM
  #10  
TECH Fanatic
iTrader: (1)
 
1Bear's Avatar
 
Join Date: Aug 2006
Location: Jones Creek, Texas
Posts: 1,410
Likes: 0
Received 8 Likes on 8 Posts
Default

Originally Posted by Wide Open
So how do the newer transfer case and traction control work together?
Do the NVG 149 cases have any electrical control?
Wheel spin is controlled via the traction control on the BW units, as they operate as an open differential. The NVG 149's are totally mechanical in nature, with a normal 38/62 split, but can go as much as 100% towards the axel with the most traction as needed.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Three6GMC
GM Drivetrain & Suspension
16
08-28-2015 07:56 AM
Bluchevypick
Trucks and SUV Classifieds
4
08-18-2015 09:11 AM
chacho44
GMT 900 Trucks General Discussion
0
08-03-2015 04:07 PM
cams 98 silverado
GMT 900 Trucks General Discussion
7
07-31-2015 07:36 AM
MileHighSierra
GM Drivetrain & Suspension
5
07-22-2015 11:19 PM



Quick Reply: Make a 4WD an AWD How?



All times are GMT -5. The time now is 08:14 PM.