Dodge Neon / Neon SRT-4. Manual — part 327
This design prevents the complete loss of drive
that occurs with a conventional “open” differential
when one wheel slips.
OPERATION
The Quaife Automatic Torque Biasing Differential
is a Limited-Slip design that behaves like an open
differential during normal driving situations. During
aggressive driving maneuvers (straight-line hard
acceleration, hard cornering) it senses which wheel
has better grip, and biases power to that wheel
smoothly and consistently, without removing power
from the other wheel.
In the event of wheel slip, torque bias is generated
by the axial and radial thrusts of the pinions in the
pockets. The resultant friction force enables the driv-
ing road wheel and sun gear to transmit a greater
proportion of the torque. This is a progressive action,
yet at no stage will the differential ever lock.
This differential also controls loss off traction when
the drive wheels are on slippery surfaces such as ice,
snow, or mud, providing the appropriate biased trac-
tion needed to overcome these adverse conditions.
Fig. 96 Quaife ATB Differential
1 - GEAR BODY (FLANGED SIDE)
2 - BOLT (11)
3 - SUN GEAR (2)
4 - PLANET PINION (12)
5 - CENTER PACK
6 - GEAR BODY (SMALL SIDE)
21 - 92
T850 MANUAL TRANSAXLE
PL/SRT-4
DIFFERENTIAL (Continued)
Fig. 97 Differential Components
1 - GEAR BODY (SMALL SIDE)
6 - CENTER BLOCK
2 - SUN GEAR (2)
7 - GEAR BODY (FLANGE SIDE)
3 - PLANET PINION (12)
8 - BOLT (11)
4 - SPRING HOUSING (2)
9 - DOWEL
5 - BELLEVILLE WASHER (6)
PL/SRT-4
T850 MANUAL TRANSAXLE
21 - 93
DIFFERENTIAL (Continued)
DISASSEMBLY
NOTE: The Quaife ATB Differential is serviced only
as a complete assembly. The only serviceable com-
ponents are the ring gear and tapered roller bear-
ings. No other component replacement will be
possible.
(1) Remove differential side bearings:
(a) Install Tool 8491-1 to differential case (Fig.
98).
(b) Set up Tool 5048 (5048-1, -4, -6) as shown in
(Fig. 99)
(c) Remove differential side bearing (Fig. 100)
(2) Remove ring gear-to-case bolts (Fig. 101).
Fig. 98 Tool 8491
TOOL 8491
Fig. 99 Puller 5048
1 - 5048-1 FORCING SCREW
2 - 5048-4 COLLETS
3 - 5048-6 SLEEVE
Fig. 100 Differential Side Bearing Removal
1 - TOOL 5048
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T850 MANUAL TRANSAXLE
PL/SRT-4
DIFFERENTIAL (Continued)
(3) Press ring gear off of differential case (Fig.
102).
(4) Remove eleven (11) differential gear body halve
bolts (Fig. 103). Separate halves, noting position and
orientation of locating dowel.
(5) Remove differential components and inspect
(Fig.
104).
Note
assembly
orientation
of
belleville spring washers.
Fig. 101 Ring Gear-to-Case Bolts
1 - BOLT (12)
Fig. 102 Pressing Ring Gear off of Case
1 - TOOL 8491
Fig. 103 Differential Case Halve Bolts
1 - BOLT (11)
PL/SRT-4
T850 MANUAL TRANSAXLE
21 - 95
DIFFERENTIAL (Continued)
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