Lincoln Aviator: Rear Drive Axle/Differential / Description and Operation - Rear Drive Axle and Differential
The 8.8-inch ring gear open rear differential axle has 3.31 gear ratio versions.
Rear Drive Axle and Differential
The rear axle assembly consists of the following:
-
Integral-type housing hypoid gear design (center of the pinion set below the centerline of the ring gear)
-
Hypoid differential ring gear and pinion consisting of a
8.8-inch ring gear and an overhung drive pinion that is supported by 2
opposed tapered roller bearings
-
Cast center section with a cast aluminium differential housing cover
-
Differential housing cover using silicone rubber based sealant as a gasket
-
Differential pinion shaft that is retained by a roll pin attached to the differential case
-
Differential case that is mounted in the rear axle
housing between 2 opposing differential bearings that are retained in
the rear axle housing by 2 removable bearing caps
-
Differential ring gear backlash which is adjusted by
differential bearing shims that are located between the differential
bearing cups and the rear axle housing
The
rear drive axle receives rotational torque from the driveshaft. The
direction of the rotation determines movement of the vehicle. The
rotation enters the rear drive axle through the drive pinion, turning
the drive pinion and rotating the ring gear. The ring gear is welded to
the differential case. The differential case houses the pinion shaft
upon which the differential pinion gears ride. The pinion gears are in
mesh with the differential side gears to which the axle shafts are
splined. It is the unique arrangement of the differential that allows
the axle shafts to be driven at different speed when needed, such as
when driving around corners.
This
is an open differential. It has the normal internal spider gear design
that will allow a speed differential between the rear wheels when
cornering. The open differential has the ring gear integrated with
differential carrier assembly.
Capacities
Item
Specification
Material: Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant
/ XY-75W85-QL
(WSS-M2C942-A)
1...
Preliminary Inspection
Visually inspect the housing, seals, drive pinion stem for obvious signs of mechanical damage.
If an obvious cause for an observed or reported concern is
found, correct the cause (if possible) before proceeding to the next
step
If the cause is not visually evident, verify the symptom and REFER to Symptom Chart: NVH...
Other information:
WARNING: Make sure all persons
are clear of the power liftgate area before
using the power liftgate control.
Note: Make sure the area behind your
vehicle is free from obstruction and that
there is enough room for you to operate the
liftgate. Make sure the area behind your
vehicle is free from obstruction and that
there is enough room for you to operate the
liftgate...
Diagnostic Trouble Code (DTC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
Diagnostic Trouble Code Chart
Module
DTC
Description
Action
HUD
U0100:00
Lost Communication With ECM/PCM "A":No Sub Type Information
GO to Pinpoint Test J
HUD
U0140:00
Lost Communication With Body Control Module:No Sub Type Information
GO to Pinpoint Test K
HUD
U0164:00
Lost Communication With HVAC Control Module:No Sub Type Information
GO to Pinpoint Test M
HUD
U0208:00
Lost Communication With "Seat Control Module A":No Sub Type Information
GO to Pinpoint Test N
HUD
U0212:00
Lost Communication With Steering Column Control Module:No Sub Type Information
GO to Pinpoint Test O
HUD
U0232:00
Lost Communication With Side Obstacle Detection Control Module "A":No Sub Type Information
GO to Pinpoint Test P
HUD
U0233:00
Lost Communication With Side Obstacle Detection Control Module "B":No Sub Type Information
GO to Pinpoint Test P
HUD
U0238:00
Lost Communication With Digital Audio Control Module "D":No Sub Type Information
GO to Pinpoint Test Q
HUD
U023A:00
Lost Communication With Image Processing Module A:No Sub Type Information
GO to Pinpoint Test R
HUD
U0401:00
Invalid Data Received from ECM/PCM A:No Sub Type Information
GO to Pinpoint Test J
HUD
U0401:81
Invalid Data Received from ECM/PCM A:Invalid Serial Data Received
GO to Pinpoint Test J
HUD
U0401:82
Invalid Data Received from ECM/PCM A:Alive/Sequence Counter Incorrect/Not Updated
GO to Pinpoint Test J
HUD
U0405:56
Invalid Data Received From Cruise Control Module:Invalid/Incompatible Configuration
GO to Pinpoint Test S
HUD
U0424:00
Invalid Data Received From HVAC Control Module:No Sub Type Information
GO to Pinpoint Test M
HUD
U0424:81
Invalid Data Received From HVAC Control Module:Invalid Serial Data Received
GO to Pinpoint Test M
HUD
U0424:82
Invalid Data Received From HVAC Control Module:Alive/Sequence Counter Incorrect/Not Updated
GO to Pinpoint Test M
HUD
U0429:00
Invalid Data Received From Steering Column Control Module:No Sub Type Information
GO to Pinpoint Test O
HUD
U0429:82
Invalid Data Received From Steering Column
Control Module:Alive/Sequence Counter Incorrect/Not Updated
GO to Pinpoint Test O
HUD
U0431:00
Invalid Data Received From Body Control Module "A":No Sub Type Information
GO to Pinpoint Test K
HUD
U0509:82
Invalid Data Received From "Seat Control Module A":Alive/Sequence Counter Incorrect/Not Updated
GO to Pinpoint Test N
HUD
U2100:00
Initial Configuration Not Complete:No Sub Type Information
GO to Pinpoint Test T
HUD
U2300:55
Central Configuration:Not Configured
GO to Pinpoint Test S
HUD
U3000:04
Control Module:System Internal Failures
GO to Pinpoint Test U
HUD
U3000:41
Control Module:General Checksum Failure
GO to Pinpoint Test U
HUD
U3000:42
Control Module:General Memory Failure
GO to Pinpoint Test U
HUD
U3000:47
Control Module:Watchdog/Safety µC Failure
GO to Pinpoint Test U
HUD
U3000:49
Control Module:Internal Electronic Failure
GO to Pinpoint Test U
HUD
U3001:98
Control Module Improper Shutdown Performance:Component Or System Over Temperature
GO to Pinpoint Test V
HUD
U3003:16
Battery Voltage:Circuit Voltage Below Threshold
GO to Pinpoint Test X
HUD
U3003:17
Battery Voltage:Circuit Voltage Above Threshold
GO to Pinpoint Test Y
HUD
U300A:64
Ignition Switch:Signal Plausibility Failure
GO to Pinpoint Test W
Symptom Chart
Symptom Chart: HUD
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...