[BANDITSS]

Do you guys know what kind of transmission, transfer case and rearend a 2003 all wheel drive Denali has. I know the transmisson is not a 4l80 for sure because of its oil pan. And as far as the transfer case how does does that work it being an AWD? Plus I'm wondering if the rear diff is different to be able to keep up with the fact that its AWD? Any info will help, Thanks,
JD

 

[Denaliano]

On which model?

On a Sierra Denali, it has the 4L65E/NVG149/DANA 60/4.10s

On a Yukon Denali, it has the 4L65E/BW4481/10 Bolt/3.73s

AWD

There are two different categories of AWD systems. The first category is full-time AWD. This type of transfer case delivers torque to the front and rear axles at all times. This ratio can vary depending on the system, but is usually about a 30/70% front to rear split but also can vary depending on traction conditions, up to 100% front or rear. This type of transfer case can have a viscous coupling for low traction conditions along with a planetary gear set to allow for difference in speeds between the front and rear axle, or an open type of planetary gear set differential, which uses brake based traction control for low traction conditions. An example of a vehicle with an open differential/traction control type of transfer case is a 2003 Escalade. RPO codes for these types of transfer cases are NP3 (NVG 149, BW 4473) or NR3 (BW 4476, 4481).

The second category is an on-demand AWD. This type of AWD basically delivers torque only to a primary driving axle unless reduced traction is experienced. At that point, the system electronically or mechanically will apply torque to the other axle. Depending on the type of system, this can provide up to 100% of the torque to the axle with traction. These transfer cases use an electronically actuated clutch pack, a hydraulically actuated clutch pack, or a viscous coupling to allow for a difference in speed between the front and rear axles. An example of an electronically controlled version of the On-Demand AWD is in the Smart Trak system in the 2003 Bravada. An example of a hydraulically operated On-Demand AWD is the Versa Trak system in the Aztek, while a viscous coupling is used in the Vibe. The RPO code for the Bravada is NP4 (NVG126). For some vehicle lines, there is not an RPO code. The only way to tell is by the Line Chassis VIN code, B for the Rendezvous/Aztek, V for the Venture/Montana or by SM for the Vibe.

 

[BANDITSS]

Damn.. you know your shit.
Well I did some research on the VIN # and they told me the transmission has a code of KNP dont know what that means but ohwell. The rear end is a 10 bolt equipped with 3.73 gears, and the motor is an LQ4. Thats all I know for now..

Whats BW4481?

 

[Denaliano]

Borg Warner 4481, AWD transfer case.

You have a 4L65E, RPO code M32. Code KNP isn't your transmission, it's the Auxillary Transmission Cooler... lol. LQ4 is the code for the Vortec 6000, 325hp 6.0L. :head3:

RPO codes are found on a sticker in your glove box.

The following is a list of all 2003 GMC Denali Regular Production Options (RPOs)... RPO Description

A31 Windows, power
AJ1 Glass, Solar-Ray deep tinted
AL4 Seats, middle leather seating surfaces Captain's chairs
AN3 Seats, front tone-on-tone leather seating surfaces
AS3 Seats, rear 3rd row, 50/50 split-bench
AS3 Seats, rear 3rd row, bench, 3-passenger, 1-piece removable
AT5 Seats, middle tone-on-tone leather seating surfaces 60/40 split-folding bench
AU0 Keyless entry, remote
AU3 Door locks, power programmable
B30 Floor covering, color-keyed carpeting
B58 Floormats, color-keyed, carpeted front and 2nd row
BVF Assist steps, color-keyed
C25 Wiper, intermittent, rear
C36 Heater and defogger
C49 Defogger, rear-window, electric
C5W GVWR, 7000 lbs. (3175 kg)
C5Z GVWR, 7200 lbs. (3266 kg)
CF5 Sunroof, power
CJ2 Air conditioning, tri-zone, automatic
D07 Console, floor
DF5 Mirror, inside rearview, electrochromic
DH6 Visors, padded, Shale-colored
DK7 Console, overhead mini
DL3 Mirrors, outside rearview, power folding, power adjustable, heated, color-keyed
E52 Body, liftgate with liftglass
FE9 Emissions, Federal requirements
GT4 Rear axle, 3.73 ratio
JC4 Brakes, 4-wheel antilock, 4-wheel disc
JF4 Pedals, power, adjustable
JL4 StabiliTrak, vehicle stability enhancement system
K05 Engine block heater
K34 Cruise control
K47 Air cleaner, high-capacity
KC4 Cooling, external engine oil cooler
KG3 Alternator, 145 amps
KNP Cooling, external transmission oil cooler
LQ4 Engine, Vortec 6000 V8 SFI
M32 Transmission, 4-speed automatic, heavy-duty
N93 Wheels, 4 - 17" x 7" (43.2 cm x 17.8 cm) cast aluminum, polished
NB8 Emissions override, California, Maine, Massachusetts, New York or Vermont
NC7 Emissions override, Federal
NE1 Emissions, Maine or Massachusetts state requirements
NG1 Emissions, New York or Vermont state requirements
NP5 Steering wheel,
NR3 Transfer case, AWD, electronic automatic system
PDC Cargo Package
PDQ Security Plus Package
QAN Tires, P265/70R17, all-season, blackwall
SAF Tire carrier, outside spare, lockable
T96 Fog lamps, front
TL1 Grille, chrome surround
U1S Sound system, 6-disc in-dash CD changer
U2K Sound system feature, XM Satellite Radio
U42 Entertainment system, rear seat
UB1 Sound system, ETR AM/FM stereo with CD and cassette player
UK6 Sound system feature, rear audio controls
UM8 Sound system, ETR AM/FM stereo with CD player
UQ7 Sound system feature, Bose luxury speaker system
V54 Luggage rack, roof-mounted, Black
V76 Recovery hooks, 2 front, frame-mounted
VT4 Bumper, front, body-color
VT5 Bumper, rear, body-color step
YF5 Emissions, California state requirements
Z55 Suspension Package, Autoride
Z82 Trailering equipment, heavy-duty

 

[BANDITSS]

dAMMIT bOY.. tHANkS

 

[boostaholic]

The trucks came with a d60 rear?

 

[Denaliano]

The trucks came with a d60 rear?

Yep, 02-05 Quadrasteers did

Exploded Disassembled View --v

http://i13.photobucket.com/albums/a256/94BigBlazer/service/quad_exp-1.jpg

 

[boostaholic]

Damn I had no idea! I may have to pick one of those up, any issues with yours? What kinda mileage do you get with the awd?

 

[gonzalezhump]

hello i am new to this site but i looks great i have a small question i have a 2002 Cadillac escalade vin number 1gyek63n12r107271 and i am looking for a transfer case would anyone know were to get one and which one do i need exactly because i been told it has to be the exact one for that truck

 

[boostaholic]

You should have the nvg-149 case like my yukon denali. Check the vin with a dealer or simply look at the rear of the case for an identification tag.

 

[DirtyBlackHoe]

I hate to bump this since it is so old, but I am wondering are there any issues with the BW4481 transfer case that should deter me from buying a 2004 Denali?

 

[Duke93]

Yep, 02-05 Quadrasteers did

Exploded Disassembled View --v

http://i13.photobucket.com/albums/a256/94BigBlazer/service/quad_exp-1.jpg

On which model?

On a Sierra Denali, it has the 4L65E/NVG149/DANA 60/4.10s

On a Yukon Denali, it has the 4L65E/BW4481/10 Bolt/3.73s

AWD

There are two different categories of AWD systems. The first category is full-time AWD. This type of transfer case delivers torque to the front and rear axles at all times. This ratio can vary depending on the system, but is usually about a 30/70% front to rear split but also can vary depending on traction conditions, up to 100% front or rear. This type of transfer case can have a viscous coupling for low traction conditions along with a planetary gear set to allow for difference in speeds between the front and rear axle, or an open type of planetary gear set differential, which uses brake based traction control for low traction conditions. An example of a vehicle with an open differential/traction control type of transfer case is a 2003 Escalade. RPO codes for these types of transfer cases are NP3 (NVG 149, BW 4473) or NR3 (BW 4476, 4481).

The second category is an on-demand AWD. This type of AWD basically delivers torque only to a primary driving axle unless reduced traction is experienced. At that point, the system electronically or mechanically will apply torque to the other axle. Depending on the type of system, this can provide up to 100% of the torque to the axle with traction. These transfer cases use an electronically actuated clutch pack, a hydraulically actuated clutch pack, or a viscous coupling to allow for a difference in speed between the front and rear axles. An example of an electronically controlled version of the On-Demand AWD is in the Smart Trak system in the 2003 Bravada. An example of a hydraulically operated On-Demand AWD is the Versa Trak system in the Aztek, while a viscous coupling is used in the Vibe. The RPO code for the Bravada is NP4 (NVG126). For some vehicle lines, there is not an RPO code. The only way to tell is by the Line Chassis VIN code, B for the Rendezvous/Aztek, V for the Venture/Montana or by SM for the Vibe.

I have an 03 quadrasteer I am looking for a transfer case for it has the np149 can I swap that for the bw4481