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Home >> Infiniti >> 2021 >> Q50 Signature Edition, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Transfer Case (Service Information)) >> Disassembly And Assembly >> Rear Final Drive >> Rear Final Drive Differential Assembly >> REAR FINAL DRIVE DIFFERENTIAL ASSEMBLY : Adjustment >> Tooth Contact

Tooth Contact

WARNING: This page is about a different variant/trim than selected.
  1. Remove rear cover. Refer to REAR FINAL DRIVE DIFFERENTIAL ASSEMBLY : Disassembly & Assembly .
  2. Using rear cover mounting bolt, install dummy cover set [SST: KV385J9010 (--)] to gear carrier. Refer to REAR FINAL DRIVE DIFFERENTIAL ASSEMBLY : Disassembly & Assembly .
    CAUTION: Liquid gasket is not necessary. Never apply liquid gasket to rear cover.
    NOTE: The installation procedure is the same as that of rear cover.
  3. Apply red lead to drive gear.
    GNSJSDIA4761Z-761Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Apply red lead to both the faces of 3 to 4 gears at 4 locations evenly spaced on drive gear.
  4. Rotate drive gear back and forth several times, check drive pinion gear to drive gear tooth contact.
    G04076209Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Check tooth contact on drive side and reverse side.

    Tooth Contact Judgment Guide 

    G04076351Courtesy of NISSAN NORTH AMERICA, INC.
  5. If tooth contact is improperly adjusted, follow the procedure below to adjust the pinion height (dimension X).
    G04076232Courtesy of NISSAN NORTH AMERICA, INC.
    • If the tooth contact is near the face (face contact), or near the heel (heel contact), thicken drive pinion height adjusting washer to move drive pinion closer to drive gear.
      G04076233Courtesy of NISSAN NORTH AMERICA, INC.

      For selecting adjusting washer, refer to the latest parts information.

    • If the tooth contact is near the flank (flank contact), or near the toe (toe contact), thin drive pinion height adjusting washer to move drive pinion farther from drive gear.
      G04076234Courtesy of NISSAN NORTH AMERICA, INC.

      For selecting adjusting washer, refer to the latest parts information.