Differential Bearing Preload

WARNING: This page is about a different variant/trim than selected.

Remove the bearing race and adjustment shim from the converter housing using the SST .

Fig 1: Removing Bearing Race And Adjustment Shim From Converter Housing
Courtesy of MAZDA MOTORS CORP.
Install the bearing race into the transaxle case.

Fig 2: Installing Bearing Race Into Transaxle Case
Courtesy of MAZDA MOTORS CORP.
Set the differential on the transaxle case.
Install the bearing race removed in Step 1 into the SST .

Fig 3: Installing Bearing Race
Courtesy of MAZDA MOTORS CORP.
Set the differential on the SST (selector).

Fig 4: Setting Differential On SST
Courtesy of MAZDA MOTORS CORP.
Turn the selector to eliminate the gap between its two halves.

Fig 5: Locating Halves
Courtesy of MAZDA MOTORS CORP.
Set the six SSTs (collars) on the transaxle case in the position shown.

Fig 6: Setting SST (Collars) On Transaxle Case In Position
Courtesy of MAZDA MOTORS CORP.
Set the converter housing on the transaxle case and tighten the SSTs (bolts) to the specified torque.
Tightening torque

19-25 N.m {1.9-2.6 kgf.m, 14-18 ft.lbf}
Turn the SST (selector) to increase the clearance (arrow) using the SSTs (bars), until it no longer turns. This is to seat the bearing race.

Fig 7: Setting Converter Housing On Transaxle Case
Courtesy of MAZDA MOTORS CORP.
Turn the selector in the opposite direction until the preload is eliminated (gap is reduced).
Insert the SST through the converter housing and attach it to the pinion shaft.
Install the SST and a pull scale or torque wrench.
NOTE:
- Read the preload when the differential starts to turn.
- Measure several times and calculate the average value.
Fig 8: Identifying SSTs
Courtesy of MAZDA MOTORS CORP.
Adjust the clearance of the SST (selector) to obtain the specified preload/pull scale reading.
Differential bearing Preload

Preload: 1.4-2.3 N.m {14-24 kgf.cm, 12-20 in lbf}

Reading on pull scale: 14-23 N {1.4-2.4 kgf, 3.1-5.3 lbf}

Fig 9: Measuring Differential Bearing Preload
Courtesy of MAZDA MOTORS CORP.
NOTE:
- Measure the clearance around the entire circumference, and select a shim based on the maximum clearance.
- The maximum allowable number of adjustment shim is one.
Fig 10: Measuring Clearance Around Entire Circumference
Courtesy of MAZDA MOTORS CORP.
Measure the clearance as shown.

Take the maximum reading and determine the shim to be used.

Fig 11: Removing Converter Housing

Courtesy of MAZDA MOTORS CORP.

Differential preload adjust shims (mm {in})

DIFFERENTIAL PRELOAD SPECIFICATIONS

0.50 {0.020}	0.55 {0.022}	0.60 {0.024}
0.65 {0.026}	0.70 {0.028}	0.75 {0.030}
0.80 {0.031}	0.85 {0.033}	0.90 {0.035}
0.95 {0.037}	1.00 {0.039}	1.05 {0.041}
1.10 {0.043}	1.15 {0.045}	1.20 {0.047}
1.25 {0.049}	1.30 {0.051}	1.35 {0.053}
1.40 {0.055}	1.45 {0.057}	1.50 {0.059}
1.55 {0.061}	-	-

Remove the converter housing and SST (selector).
Install the required adjustment shim and tap the bearing race into the converter housing.
Install the converter housing.
Tightening torque

19-25 N.m {1.9-2.6 kgf.m, 14-18 ft.lbf}

Fig 12: Installing Bearing Race Into Converter Housing
Courtesy of MAZDA MOTORS CORP.
Install the SST to the pinion shaft through the converter housing.
NOTE:
- Measure several times and calculate the average value.
Verify that the preload is within the specification. If not, return to Step 1.
Differential bearing Preload

Preload: 1.4-2.3 N.m {14-24 kgf.cm, 12-20 in.lbf}

Reading on pull scale: 14-23 N {1.4-2.4 kgf, 3.1-5.3 lbf}
Remove the converter housing.