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Home >> Buick >> 2018 >> LaCrosse Base >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Suspension System >> Repair Instructions >> Strut, Strut Component, or Spring Replacement >> Assembly Procedure

Assembly Procedure

  1. GM4971534

    Front Suspension Strut Bumper (1) - Install

  2. Front Strut Boot (2) - Install
  3. GM4971512

    Front Coil Spring Insulator (2) - Install

  4. Front Strut Mount (1) - Install
  5. GM5124569

    If replacing the front coil spring (2), transfer the grease pencil marks made on the old front coil spring (2) to the new front coil spring (2).

  6. Align the grease pencil marks to the lower arms and center the front coil spring (2) and the associated components to the CH-45400  Strut Spring Compressor (1).
  7. Ensure that the spring is level in the CH-45400  Strut Spring Compressor (1) by using the adjustment screws.
  8. Using the CH-45400  Strut Spring Compressor (1), apply tension on the front coil spring (2).
  9. GM5124512

    Front Coil Spring Lower Insulator (2) - Install

  10. NOTE:

    Support the front suspension strut until the front suspension strut nut is loosely installed.

  11. Front Suspension Strut (3) - Install
  12. NOTE:

    Adjust the CH-45400  Strut Spring Compressor as necessary so enough of the threaded portion of the front suspension strut rod is exposed.

  13. Front Strut Rod Mount Nut (1) - Loosely install
  14. GM5124481
    CAUTION:

    Refer to Fastener Caution .

    Using the CH-42991  Strut Rod Nut Socket (1), tighten the front strut rod mount nut to 70 N.m (52 lb ft).

  15. GM5124407

    Using the CH-45400  Strut Spring Compressor (1), release all tension on the front coil spring and the front strut mount.

  16. Remove the front suspension strut assembly (3) from the CH-45400  Strut Spring Compressor (1).
  17. Install the front suspension strut assembly to the vehicle. Strut Assembly Removal and Installation (GNB) Strut Assembly Removal and Installation (GNA)