Mazda CX 7. Manual — part 185
DIFFERENTIAL
03-14–1
03-14
03-14
DIFFERENTIAL
REAR DIFFERENTIAL
LOCATION INDEX. . . . . . . . . . . . . . . . . 03-14–1
DIFFERENTIAL OIL INSPECTION . . . . . 03-14–2
DIFFERENTIAL OIL REPLACEMENT . . 03-14–2
OIL SEAL (SIDE GEAR)
REPLACEMENT . . . . . . . . . . . . . . . . . . 03-14–2
OIL SEAL (COMPANION FLANGE)
REPLACEMENT . . . . . . . . . . . . . . . . . . 03-14–3
REAR DIFFERENTIAL
REMOVAL/INSTALLATION. . . . . . . . . . 03-14–5
REAR DIFFERENTIAL
DISASSEMBLY . . . . . . . . . . . . . . . . . . . 03-14–6
Rear Cover Disassembly Note . . . . . . . 03-14–7
Bearing Cap Disassembly Note . . . . . . 03-14–7
Rear Differential Component
Disassembly Note . . . . . . . . . . . . . . . 03-14–7
Locknut Disassembly Note. . . . . . . . . . 03-14–8
Drive Pinion Disassembly Note . . . . . . 03-14–8
Bearing Inner Race (Rear Bearing)
Disassembly Note . . . . . . . . . . . . . . . 03-14–8
Bearing Outer Race
Disassembly Note . . . . . . . . . . . . . . . 03-14–8
Ring Gear Disassembly Note . . . . . . . . 03-14–9
Side Bearing Inner Race
Disassembly Note . . . . . . . . . . . . . . . . 03-14–9
REAR DIFFERENTIAL ASSEMBLY. . . . . 03-14–10
Side Bearing Inner Race
Assembly Note . . . . . . . . . . . . . . . . . . 03-14–11
Thrust washer Assembly Note . . . . . . . 03-14–11
Ring Gear Assembly Note. . . . . . . . . . . 03-14–12
Bearing Outer Race Assembly Note . . . 03-14–12
Spacer, Bearing Inner Race
Assembly Note . . . . . . . . . . . . . . . . . . 03-14–13
Locknut Assembly Note. . . . . . . . . . . . . 03-14–15
Adjusting Shim Assembly Note . . . . . . . 03-14–15
Bearing Cap Assembly Note . . . . . . . . . 03-14–17
Rear Cover Assembly Note . . . . . . . . . . 03-14–18
Oil Seal Assembly Note . . . . . . . . . . . . 03-14–18
End of Toc
WM: DIFFERENTIAL (FF/FR)
REAR DIFFERENTIAL LOCATION INDEX
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.
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4
3
1
2
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1
Differential oil
(See 03-14-2 DIFFERENTIAL OIL INSPECTION)
(See 03-14-2 DIFFERENTIAL OIL
REPLACEMENT)
2
Oil seal (side gear)
(See 03-14-2 OIL SEAL (SIDE GEAR)
REPLACEMENT)
3
Oil seal (companion flange)
(See 03-14-3 OIL SEAL (COMPANION FLANGE)
REPLACEMENT)
4
Rear differential
(See 03-14-5 REAR DIFFERENTIAL REMOVAL/
INSTALLATION)
(See 03-14-6 REAR DIFFERENTIAL
DISASSEMBLY)
(See 03-14-10 REAR DIFFERENTIAL ASSEMBLY)
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DIFFERENTIAL
03-14–2
DIFFERENTIAL OIL INSPECTION
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1. Place the vehicle on level ground.
2. Remove the filler plug and washer.
3. Verify that the oil is at the brim of the filler plug
hole.
4. If it is low, add the specified oil.
5. Install a new washer and the filler plug, and
tighten.
Tightening torque
39.2— 53.9 N·m {4.0— 5.4 kgf·m, 29.0— 39.7
ft·lbf}
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DIFFERENTIAL OIL REPLACEMENT
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1. Place the vehicle on level ground.
2. Remove the filler plug.
3. Remove the drain plug and drain the differential
oil into a container.
4. Install a new washer and the drain plug, and
tighten.
Tightening torque
39.2— 53.9 N·m {4.0— 5.4 kgf·m, 29.0— 39.7
ft·lbf}
5. Add the specified differential oil from the filler plug
until the level reaches the brim of the plug hole.
Rear differential oil type
Grade: API service GL-5
Viscosity: SAE 80W-90
Rear differential oil capacity (approximate quantity)
1.00 L {1.06 US qt, 0.88 Imp qt}
6. After filling with differential oil, perform oil level inspection.
7. Install a new washer and the drain plug, and tighten.
Tightening torque
39.2— 53.9 N·m {4.0— 5.4 kgf·m, 29.0— 39.7 ft·lbf}
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OIL SEAL (SIDE GEAR) REPLACEMENT
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1. Remove the drain plug and the drain differential oil into a container.
2. Install a new washer and the drain plug, and tighten.
3. Remove the rear drive shaft. (See 03-13-20 REAR DRIVE SHAFT REMOVAL/INSTALLATION.)
4. Remove the clip from the drive shaft.
Caution
• Wrap the end of a screwdriver with cloth to prevent scratches to the inside of the differential
casing.
FILLER PLUG
E6U314ZWC009
FILLER PLUG
DRAIN PLUG
E6U314ZWC010
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DIFFERENTIAL
03-14–3
03-14
5. Remove the oil seal from the differential casing
using a screwdriver.
6. Apply differential oil to the new oil seal lip.
7. Install the new oil seal to the differential carrier
using the SSTs.
Substitution SST
• 49 G030 796
Outer diameter: 56— 60 mm {2.21— 2.36 in}
Inner diameter: 49.8 mm {2.0 in} or more
Inner depth: 8.7 mm {0.34 in} or more
8. After installing the new clip onto the drive shaft,
insert the drive shaft into the differential. (See 03-
13-20 REAR DRIVE SHAFT REMOVAL/
INSTALLATION.)
9. Verify that the drive shaft cannot be pulled out.
10. Add the specified differential oil.
11. After adding the oil, perform an oil level
inspection. (See 03-14-2 DIFFERENTIAL OIL INSPECTION.)
12. Install a new washer and the oil filler plug, and tighten.
Tightening torque
39.2— 53.9 N·m {4.0— 5.4 kgf·m, 29.0— 39.7 ft·lbf}
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OIL SEAL (COMPANION FLANGE) REPLACEMENT
id031400800800
1. Drain the differential oil into a container.
2. Remove the propeller shaft. (See 03-15-3 PROPELLER SHAFT REMOVAL/INSTALLATION.)
3. Remove the locknut using the SST.
4. Support the differential using a jack.
5. After removing the front side of the differential
mount, gradually lower the jack and tilt the front
side of the differential downward.
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49 G030 797
49 G030 796
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49 S120 710
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JACK
DIFFERENTIAL
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DIFFERENTIAL
03-14–4
6. Pull the companion flange off using the SST.
7. Remove the oil seal from the differential carrier
using a screwdriver or similar tool.
8. Apply differential oil to the new oil seal lip.
9. Install the new oil seal to the differential carrier
using the SST.
Substitution SST
• 49 W011 102
Outer diameter: 66 mm {2.60 in} or more
Inner diameter: 54— 60 mm {2.13— 2.36 in}
or more
Inner depth: 17.5 mm {0.69 in} or more
10. Install the companion flange to the drive pinion.
11. Jack up the differential and install the front side of
the differential mount.
Tightening torque
75.5— 102 N·m {7.7— 10.4 kgf·m, 55.7— 75.2
ft·lbf}
12. Install the washer and a new locknut.
13. Tighten the locknut to the specified torque using
the SST.
Tightening torque
167— 226 N·m {17.1— 23.0 kgf·m, 124— 166
ft·lbf}
14. Install the propeller shaft. (See 03-15-3
PROPELLER SHAFT REMOVAL/
INSTALLATION.)
15. Add the specified differential oil from the filler
plug. (See 03-14-2 DIFFERENTIAL OIL
REPLACEMENT.)
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49 0839 425C
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49 W011 102
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49 S120 710
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