Differential: Overview Mazda CX-7 I facelift

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 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}

Scheme 4

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 «REAR DRIVE SHAFT REMOVAL/INSTALLATION»(ref-343813-S30593168712009101500000) ).
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.
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 49G030 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 «REAR DRIVE SHAFT REMOVAL/INSTALLATION»(ref-343813-S30593168712009101500000) ).
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 «DIFFERENTIAL OIL INSPECTION»(ref-343820-S00421710002009101500000).)
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}

Scheme 5

1. Drain the differential oil into a container.
2. Remove the propeller shaft. (See «PROPELLER SHAFT REMOVAL/INSTALLATION»(/mazda/cx-7/i-facelift-2009-2012/remont/driveshaft-universal-joints/#propeller-shaft) ).
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.
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 «PROPELLER SHAFT REMOVAL/INSTALLATION»(/mazda/cx-7/i-facelift-2009-2012/remont/driveshaft-universal-joints/#propeller-shaft) ).
15. Add the specified differential oil from the filler plug. (See «DIFFERENTIAL OIL REPLACEMENT»(ref-343820-S31314527902009101500000).)

1. Drain the rear differential oil into a container.
2. Remove the main silencer and middle pipe. (See «EXHAUST SYSTEM REMOVAL/INSTALLATION [L3 WITH TC]»(ref-343777-S32611220982009101500000) ).
3. Remove the propeller shaft. (See «PROPELLER SHAFT REMOVAL/INSTALLATION»(/mazda/cx-7/i-facelift-2009-2012/remont/driveshaft-universal-joints/#propeller-shaft) ).
4. Remove the rear drive shaft. (See «REAR DRIVE SHAFT REMOVAL/INSTALLATION»(ref-343813-S30593168712009101500000) ).
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.
7. Add the specified rear differential oil. (See «DIFFERENTIAL OIL REPLACEMENT»(ref-343820-S31314527902009101500000).)
8. Inspect the rear wheel alignment and adjust it if necessary. (See «REAR WHEEL ALIGNMENT»(ref-343772-S36736788112009101500000) ).

Scheme 6

1. Disassemble in the order indicated in the table.

Scheme 7

Scheme 8

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 9

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

Scheme 10

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 11

1. Remove the locknut using the SSTs.

Scheme 12

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

Scheme 13

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

Scheme 14

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.

See also:
• PROPELLER SHAFT REMOVAL/INSTALLATION