Tooth Contact Of HYPOID Driven Gear

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

Check that the hypoid driven gear backlash is within the standard value. Adjust if out of standard. < Ref. to HYPOID DRIVEN GEAR BACKLASH , ADJUSTMENT, Front Differential Assembly. >
Apply a thin uniform coat of lead-free red dye on the surfaces of 3 or 4 hypoid driven gear teeth.

Fig 1: Applying Thin Uniform Coat On Surfaces Of Hypoid Driven Gear Teeth
Courtesy of SUBARU OF AMERICA, INC.
Attach the drive pinion shaft assembly, and affix with at least 4 bolts.
NOTE: Use old gaskets and washers to prevent the mating surfaces of the housing from becoming damaged.

Tightening torque:

50 N.m (5.1 kgf-m, 36.9 ft-lb)
Turn the drive pinion shaft to the left and right for several turns.
Remove the drive pinion shaft assembly, and inspect the mating condition of the teeth. If tooth contact is not correct, perform adjustment. < Ref. to ADJUSTMENT , Drive Pinion Shaft Assembly. >
- Correct tooth contact
NOTE: In a no load condition, the tooth contact from the center to the toe side is 50-60%. (While driving, the tooth contact will shift towards the heel side.)

Fig 2: Identifying Tooth Contact Pattern (Toe Side And Heel Side)
Courtesy of SUBARU OF AMERICA, INC.