27-1
GROUP 27
REAR AXLE
CONTENTS
REAR AXLE . . . . . . . . . . . . . . . . . . . 27-2 DIFFERENTIAL. . . . . . . . . . . . . . . . . . 27-3
27-2
REAR AXLE
REAR AXLE
REAR AXLE
M2270003000083
The rear axle consists of rear wheel hub assembly,
knuckles and driveshafts, and has the following features:
• The wheel bearing incorporates a unit ball bearing (double-row angular contact ball bearing) for
reduced friction.
• The rear wheel hub assembly combines the hub,
wheel bearing, housing, and oil seal in a single
unit for fewer parts, better rigidity, improved
assembly precision, and better structural organization.
• The driveshaft on wheel side incorporates an EBJ
type constant velocity joint.
SPECIFICATIONS
ITEM SPECIFICATION
Wheel bearing Type Unit ball bearing (Double-row angular
Drive shaft Type Outer EBJ
Length (joint to joint) ×
diameter mm (in)
• The driveshaft on differential side incorporates a
TJ type constant velocity joint.
• ABS rotors for detecting the wheel speed are
press-fitted to the EBJ.
• For environmental protection, a lead-free grease
is used on the joints.
NOTE: .
•
EBJ: Eight Ball Fixed Joint; The use of the
smaller-sized eight balls inside the joint achieves
weight saving and compact size compare with BJ
(Birfield Joint).
•
TJ: Tripod Joint
contact ball bearing)
Inner TJ
Left 485.6 × 25 (19.1 × 1.0)
Right 575.5 × 25 (22.7 × 1.0)
NOTE: The wheel bearing is part of the hub, therefore its size is not listed here.
CONSTRUCTION DIAGRAM
DIFFERENTIAL
CARRIER
DRIVE SHAFT
TJ
EBJ
WHEEL
BEARING
REAR WHEEL
HUB ASSEMBLY
AC211190
AB
REAR AXLE
DIFFERENTIAL
27-3
DIFFERENTIAL
A mechanical-type Limited Slip Differential is used.
The differential specifications are established as follows.
SPECIFICATIONS
ITEM SPECIFICATION
Reduction gear type Hypoid gear
Reduction ratio 3.307
Differential gear type (Type × number of
gears)
Number of teeth Drive gear 43
Bearing (Outside diameter × inside
diameter) mm (in)
Differential gear oil Type Hypoid gear oil MITSUBISHI
Side gear Straight bevel gear × 2
Pinion gear Straight bevel gear × 4
Drive pinion 13
Side 72.0 × 25.0 (2.83 × 1.0)
Front 62.0 × 25.0 (2.44 × 1.0)
Rear 72.0 × 25.0 (2.83 × 1.0)
Genuine Gear Oil Part
No.8149630EX or equivalent
Amount dm
3
(qt)
0.55 (0.58)
M2270001000087
27-4
DIFFERENTIAL
DIFFERENTIAL MOUNT
The front of differential carrier is supported with the
differential support member via the differential mount
bracket with insulator. The rear is supported with the
differential support arm.
CONSTRUCTION DIAGRAM
TOE CONTROL
BAR
DIFFERENTIAL SUPPORT
MEMBER
REAR AXLE
DIFFERENTIAL SUPPORT
ARM
DIFFERENTIAL
MOUNTING
BRACKET (RH)
DIFFERENTIAL
CARRIER
INSULATOR
DIFFERENTIAL MOUNTING
BRACKET (LH)
AC211191
AB
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