Tooth Contact Of HYPOID Driven Gear

Adjust until correct teeth contact is obtained.

Check tooth contact, and perform the adjustment as follows.

Correct tooth contact

Check item: Tooth contact surface is slightly shifted toward the toe side under a no-load condition. (When driving, it moves towards the heel side.)

G12452933

Courtesy of SUBARU OF AMERICA, INC.

Face contact

Check item: Backlash is too large .

Contact pattern

G10323098

Courtesy of SUBARU OF AMERICA, INC.

Corrective action: Tighten the differential side retainer to move the driven gear closer to the drive pinion shaft.

G10323099

Courtesy of SUBARU OF AMERICA, INC.

Flank contact

Check item: Backlash is too small .

Contact pattern

G10323100

Courtesy of SUBARU OF AMERICA, INC.

Corrective action: Loosen the differential side retainer to move the driven gear away from the drive pinion shaft.

G10323101

Courtesy of SUBARU OF AMERICA, INC.

Toe contact (inside contact)

Check item: Teeth contact area is too small .

Contact pattern

G11569440

Courtesy of SUBARU OF AMERICA, INC.

Corrective action: Increase the thickness of drive pinion shim and tighten the differential side retainer to move the driven gear closer to the drive pinion shaft according to the procedure for bringing drive pinion shaft away from the driven gear.

G10323103

Courtesy of SUBARU OF AMERICA, INC.

Heel contact (outside end contact)

Check item: Teeth contact area is too small .

Contact pattern

G10323505

Courtesy of SUBARU OF AMERICA, INC.

Corrective action: Reduce the thickness of drive pinion shim and loosen the differential side retainer to move the driven gear away from the drive pinion shaft according to the procedure for bringing drive pinion shaft closer to the driven gear.

G10323105

Courtesy of SUBARU OF AMERICA, INC.