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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Rear Suspension) >> Repair Instructions >> Rear Leaf Spring Replacement (Except Chassis Cab) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM4850421Courtesy of GENERAL MOTORS COMPANY

    Rear Spring Shackle(3) - Install

  2. NOTE:

    Ensure that the shorter bolt is installed in the correct direction from inboard to outboard in this location.

  3. Rear Spring Bolt(2)@ Rear Eye - Install
  4. Rear Spring Nut(1)@ Rear Eye - Loosely install
  5. GM4850404Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A second technician is required.

    Withe the aid of an assistant, install the rear leaf spring (1) to the vehicle.

  6. GM4850093Courtesy of GENERAL MOTORS COMPANY

    Rear Spring Bolt(4)@ Front Eye - Install

  7. Rear Spring Nut(3)@ Front Eye - Loosely install
  8. Rear Spring Bolt(2)@ Frame - Install
  9. Rear Spring Nut(1)@ Frame - Loosely install
  10. Using the jack stand, raise the axle back into position.
  11. GM4850005Courtesy of GENERAL MOTORS COMPANY

    Rear Spring U-Bolt Spacer (2) - Install

  12. WARNING:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fasteners could cause damage to the vehicle, component, or bodily injury.

  13. Rear Spring U-Bolt(1) - Install NEW[2x]
  14. Fig 1: Identifying Rear Spring With Tightening Sequence
    GM4849889Courtesy of GENERAL MOTORS COMPANY

    Rear Spring Anchor Plate(3) - Install

  15. Rear Spring U-Bolt Washer(2) - Install[4x]
  16. CAUTION:

    Refer to Fastener Caution .

  17. Rear Spring U-Bolt Nut(1) - Install and tighten in the criss-cross sequence shown. [4x]
    1. First Pass:140 N.m (103 lb ft)
    2. Second Pass:175 - 185 degrees 
  18. Remove the jack stand from the rear axle assembly.
  19. Install the tire and wheel assembly. Tire and Wheel Removal and Installation (Without Dual Rear Wheels) , or Tire and Wheel Removal and Installation (With Dual Rear Wheels)
  20. Lower the vehicle.
  21. Set the vehicle to curb height. Trim Height Specifications
  22. GM4850421Courtesy of GENERAL MOTORS COMPANY

    Rear Spring Nut(1)@ Rear Eye - Tighten160 N.m (118 lb ft)

  23. GM4850093Courtesy of GENERAL MOTORS COMPANY

    Rear Spring Nut(3)@ Front Eye - Tighten

    1. First Pass:100 N.m (74 lb ft)
    2. Second Pass:200 - 220 degrees 
  24. Rear Spring Nut(1)@ Frame - Tighten
    1. First Pass:140 N.m (103 lb ft)
    2. Second Pass:175 - 185 degrees