Front Axle and Rear Axle Fluid Volume

[kevin9333k]

I want to replace the gear oil (SAE 75W-90) front/rear axle in the Denali 2002 but cannot find the amount needed to refill the front and rear axles once they have been drained. I assume 2 qts but not sure.

Thank you,

Kevin

[99ssconv]

Front Drive Axle (8.25")
1.66 liters
1.75 quarts


Rear Drive Axle (8.6")
2.28 liters
2.41 quarts


Front Axle (S4WD)
SAE 80W-90 Axle Lubricant GM P/N 1052271, Canadian P/N 10953455 or equivalent.

Front Axle (F4WD)
SAE 75W-90 Synthetic Axle Lubricant GM P/N 12378261, Canadian P/N 10953455 or equivalent meeting GM Specification 9986115.

Rear Axle
SAE 75W-90 Synthetic Axle Lubricant GM P/N 12378261, Canadian P/N 10953455 or equivalent meeting GM Specification 9986115.


The Selectable Four Wheel Drive (S4WD) Front Axle consist of the following components:

Differential Carrier Housing
Differential Assembly
Output Shafts (Left and Right Side)
Inner Axle Shaft Housing
Inner Axle Shaft (Right Side)
Clutch Fork
Clutch Fork Sleeve
Electric Motor Actuator
The front axle on Selectable Four Wheel Drive model vehicles uses a central disconnect feature in order to engage and disengage the front axle. When the driver engages the 4WD system, the Transfer Case Control Module sends a signal to the electric motor actuator to energize and extend the plunger inside. The extended plunger moves the clutch fork and clutch fork sleeve across the inner axle shaft and the clutch fork shaft and locks the two shafts together. The locking of the two shafts allows the axle to operate in the same manner as a semi-floating rear axle. A propeller shaft connects the transfer case to the front axle. The differential carrier assembly uses a conventional ring and pinion gear set to transmit the driving force of the engine to the wheels. The open differential allows the wheels to turn at different rates of speed while the axle continues to transmit the driving force. This prevents tire scuffing when going around corners and premature wear on internal axle parts. The ring and pinion set and the differential are contained within the carrier. The axle identification number is located on top of the differential carrier assembly or on a label on the bottom of the right half of differential carrier assembly. The drive axles are completely flexible assemblies consisting of inner and outer constant velocity CV joints protected by thermoplastic boots and connected by a wheel drive shaft.



The Full-Time Four Wheel Drive (F4WD) Front Axle consist of the following components:

Differential Carrier Housing
Differential Assembly
Output Shaft (Left Side)
Inner Axle Shaft Housing
Inner Axle Shaft (Right Side)
The front axle on Full-Time Four Wheel Drive model vehicles does not have a central disconnect feature in order to engage and disengage the front axle. The left and right axle shafts are connected directly to the differential case assembly. This allows the axle shafts and the propeller shaft to spin continuously. The transfer case controls the amount of torque applied to the front axle. The remaining components are the same as the selectable four wheel drive axle.

[kevin9333k]

Thank you for your response.
Kevin

Originally Posted by 99ssconv

Front Drive Axle (8.25")
1.66 liters
1.75 quarts


Rear Drive Axle (8.6")
2.28 liters
2.41 quarts


Front Axle (S4WD)
SAE 80W-90 Axle Lubricant GM P/N 1052271, Canadian P/N 10953455 or equivalent.

Front Axle (F4WD)
SAE 75W-90 Synthetic Axle Lubricant GM P/N 12378261, Canadian P/N 10953455 or equivalent meeting GM Specification 9986115.

Rear Axle
SAE 75W-90 Synthetic Axle Lubricant GM P/N 12378261, Canadian P/N 10953455 or equivalent meeting GM Specification 9986115.


The Selectable Four Wheel Drive (S4WD) Front Axle consist of the following components:

Differential Carrier Housing
Differential Assembly
Output Shafts (Left and Right Side)
Inner Axle Shaft Housing
Inner Axle Shaft (Right Side)
Clutch Fork
Clutch Fork Sleeve
Electric Motor Actuator
The front axle on Selectable Four Wheel Drive model vehicles uses a central disconnect feature in order to engage and disengage the front axle. When the driver engages the 4WD system, the Transfer Case Control Module sends a signal to the electric motor actuator to energize and extend the plunger inside. The extended plunger moves the clutch fork and clutch fork sleeve across the inner axle shaft and the clutch fork shaft and locks the two shafts together. The locking of the two shafts allows the axle to operate in the same manner as a semi-floating rear axle. A propeller shaft connects the transfer case to the front axle. The differential carrier assembly uses a conventional ring and pinion gear set to transmit the driving force of the engine to the wheels. The open differential allows the wheels to turn at different rates of speed while the axle continues to transmit the driving force. This prevents tire scuffing when going around corners and premature wear on internal axle parts. The ring and pinion set and the differential are contained within the carrier. The axle identification number is located on top of the differential carrier assembly or on a label on the bottom of the right half of differential carrier assembly. The drive axles are completely flexible assemblies consisting of inner and outer constant velocity CV joints protected by thermoplastic boots and connected by a wheel drive shaft.



The Full-Time Four Wheel Drive (F4WD) Front Axle consist of the following components:

Differential Carrier Housing
Differential Assembly
Output Shaft (Left Side)
Inner Axle Shaft Housing
Inner Axle Shaft (Right Side)
The front axle on Full-Time Four Wheel Drive model vehicles does not have a central disconnect feature in order to engage and disengage the front axle. The left and right axle shafts are connected directly to the differential case assembly. This allows the axle shafts and the propeller shaft to spin continuously. The transfer case controls the amount of torque applied to the front axle. The remaining components are the same as the selectable four wheel drive axle.

[the blur]

on the 2003 Denali, what size ring gear does it have?
9.75" or other.

seems different rears take different fluid.
the updated part# for the synthetic fluid is 89021677

[Jokerdelight]

Hello,

I have a Yukon Denali 2003.
I do not have the selector to disengage the four wheel drive.
I was wondering what does it take to modify my truck to add this feature besides the selector in the dashboard.

Do I need to change the complete differential to have the plunger? Or is it possible to add it to the existing one?

Thank you
J-F