Differential: Overview Mazda CX-9 I

Scheme 1

Scheme 2

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}

Scheme 3

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 Specified oil grade: API service GL-5 Specified oil viscosity: SAE 80W-90 Capacity (approximate quantity): 1.0 L {1.1 US qt, 0.9 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}

Scheme 4

Scheme 5

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 lateral link. See «REAR LATERAL LINK REMOVAL/INSTALLATION».
4. Remove the rear coil spring. See «REAR COIL SPRING REMOVAL/INSTALLATION».
5. Remove the rear lower arm. See «REAR LOWER ARM REMOVAL/INSTALLATION».
6. Remove the rear trailing link and rear wheel hub component. See «WHEEL HUB COMPONENT REMOVAL/INSTALLATION [AWD]».
7. Remove the rear drive shaft. See «REAR DRIVE SHAFT REMOVAL/INSTALLATION».
8. 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.
9. Remove the oil seal from the differential casing using a screwdriver.
10. Apply differential oil to the new oil seal lip.
11. 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
12. After installing the new clip onto the drive shaft, insert the drive shaft into the differential. See «REAR DRIVE SHAFT REMOVAL/INSTALLATION».
13. Verify that the drive shaft cannot be pulled out.
14. Install in the reverse order of removal.
15. Add the specified differential oil.
16. After adding the oil, perform an oil level inspection. See «DIFFERENTIAL OIL INSPECTION».
17. 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}
18. Inspect the rear wheel alignment and adjust it if necessary. See «REAR WHEEL ALIGNMENT [AWD]».

Scheme 6

Scheme 7

Scheme 8

Scheme 9

Scheme 10

Scheme 11

1. Drain the differential oil into a container.
2. Remove the presilencer installation nuts. (Middle pipe side). See «EXHAUST SYSTEM REMOVAL/INSTALLATION [MZI-3.7]».
3. Disconnect the hanger rubber as shown in the figure.
4. Suspend the presilencer using a cable.
5. Remove the presilencer insulator.
6. Remove the propeller shaft. See «PROPELLER SHAFT REMOVAL/INSTALLATION»(/mazda/cx-9/i-2006-2012/remont/driveshaft-universal-joints/#propeller-shaft) .
7. Remove the locknut using the SST and a pipe.
8. Support the differential using a jack.
9. After removing the front side of the differential mount, gradually lower the jack and tilt the front side of the differential downward.
10. Pull the companion flange off using the SST.
11. Remove the oil seal from the differential carrier using a screwdriver or similar tool.
12. Apply differential oil to the new oil seal lip.
13. 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
14. Install the companion flange to the drive pinion.
15. Jack up the differential and install the front side of the differential mount. Tightening torque 63-85 N.m {6.5-8.6 kgf.m, 47-62 ft.lbf}
16. Install the washer and a new locknut.
17. Tighten the locknut to the specified torque using the SST and a pipe. Tightening torque 167-226 N.m {17.1-23.0 kgf.m, 124-166 ft.lbf}
18. Install the propeller shaft. See «PROPELLER SHAFT REMOVAL/INSTALLATION»(/mazda/cx-9/i-2006-2012/remont/driveshaft-universal-joints/#propeller-shaft) .
19. Add the specified differential oil from the filler plug. See «DIFFERENTIAL OIL REPLACEMENT».

Scheme 12

1. Drain the rear differential oil into a container.
2. Remove the under guard (LH). See «CHARCOAL CANISTER, CANISTER VENT (CV) SOLENOID VALVE, AIR FILTER COMPONENT REMOVAL/INSTALLATION [MZI-3.7]».
3. Remove the presilencer. See «EXHAUST SYSTEM REMOVAL/INSTALLATION [MZI-3.7]».
4. Remove the presilencer insulator. See «REFRIGERANT LINE REMOVAL/INSTALLATION».
5. Remove the propeller shaft. See «PROPELLER SHAFT REMOVAL/INSTALLATION»(/mazda/cx-9/i-2006-2012/remont/driveshaft-universal-joints/#propeller-shaft) .
6. Remove in the order indicated in the table.
7. Install in the reverse order of removal.
8. Add the specified rear differential oil. See «DIFFERENTIAL OIL REPLACEMENT».
9. Inspect the rear wheel alignment and adjust it if necessary. See «REAR WHEEL ALIGNMENT [AWD]».

Scheme 13

1. Lock the hub by applying the brakes.
2. Knock the crimped portion of the locknut outward using a small chisel and a hammer.
3. Loosen the locknut.
4. Temporarily tighten the locknut. CAUTION: Do not remove the locknut when lowering the rear differential. Otherwise, the rear drive shaft could fall and cause injury, or damage the part.

Scheme 14

Scheme 15

Scheme 16

Scheme 17

Scheme 18

Scheme 19

1. Detach clips as shown in the figure.
2. Position the SST on the driveshaft and secure the SST with tape as shown in the figure. CAUTION: Always secure the SST using tape because the SST may fall off during the operation and cause injury.
3. Disconnect the rear drive shaft from the rear differential side using the SST and two bars.
4. Support the rear differential using a jack. CAUTION: When lowering the rear differential, be careful not to damage the rear differential oil seal, rear drive shaft, and surrounding parts.
5. Remove the rear drive shaft from the rear differential while lowering the rear differential gradually.
6. Suspend the drive shaft using a cable.

Scheme 20

1. Install the rear drive shaft to the rear differential while raising the rear differential gradually.
2. Jack up the rear drive shaft until it is horizontal and engage the rear drive shaft (differential side) and rear differential by tapping the wheel side.

Scheme 21

1. Disassemble in the order indicated in the table.

Scheme 22

Scheme 23

1. Install the SSTs to the engine stand.
2. Install the rear differential to the SSTs.
3. Remove the rear cover using an oil seal cutter.

Scheme 24

1. Place alignment marks on the bearing cap and carrier.

Scheme 25

1. Remove the rear differential component using the SSTs.
2. Mark or otherwise distinguish between the removed left and right adjusting shims, spacers and side bearing outer races so that they are not mixed up at the time of reassembly.

Scheme 26

1. Remove the locknut using the SSTs.

Scheme 27

1. Remove the drive pinion by lightly tapping with a copper hammer.

Scheme 28

1. Remove the bearing inner races (rear bearing) using the SST and a press.

Scheme 29

1. Remove the bearing outer races using the 2 grooves in the carrier and alternately tapping the sides of the races with a brass bar.

Scheme 30

1. Secure the gear case in a vice and remove the bolts.
2. Lightly tap around the ring gear using a plastic hammer to remove the ring gear from the gear case.

See also:
• PROPELLER SHAFT REMOVAL/INSTALLATION