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Home >> Cadillac >> 2014 >> XTS Base >> Repair and Diagnosis >> Body & Frame >> Frames, Subframes & Crossmembers >> Frame And Underbody >> Repair Instructions >> Rear Suspension Support Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Rear Suspension Lower Control Arm & Mounting Components
    GM2843467Courtesy of GENERAL MOTORS COMPANY
  1. Position the lower control arm (3) in the rear suspension support.
  2. Install the lower control arm bolts (5) and (1).
  3. Install the and hand tighten lower control arm nuts (4) and (2).
  4. With the aide of an assistant, turn the rear suspension support over.
    5. Fig 2: Rear Suspension Upper Control Arm & Mounting Components
    GM2842960Courtesy of GENERAL MOTORS COMPANY
  5. Position the rear suspension upper control arm (2) in the rear suspension support.
  6. Install the rear suspension upper control arm bolt (1).
  7. Install and hand tighten the rear suspension upper control arm nut and washer (3).
    8. Fig 3: Rear Suspension Adjust Link & Mounting Components
    GM2843005Courtesy of GENERAL MOTORS COMPANY
  8. Position the rear suspension adjust link (2) in the rear suspension support.
  9. Install the rear suspension adjust link bolt (1).
  10. Install and hand tighten the rear suspension adjust link nut and washer (3).
    11. Fig 4: Rear Suspension Support, Bolts & Jack
    GM2842328Courtesy of GENERAL MOTORS COMPANY
  11. With the aide of assistant, secure the rear suspension support (1) on a suitable hydraulic jack (3).
  12. Raise the rear suspension support into place.
    13. CAUTION:

    Refer to Fastener Caution .

  13. Install the NEW the rear suspension support bolts (2) and tighten to:
    • 90 (66 lb ft)
    • plus 180 degrees
    • plus 15 degrees
    14. Fig 5: Suspension Support Front Reinforcement, Support Bolts & Hydraulic Jack
    GM2842755Courtesy of GENERAL MOTORS COMPANY
  14. Install the rear suspension support front reinforcement (3) and the rear suspension support bolts (2).
  15. Tighten the NEW rear suspension support bolts (2) to:
    • 90 (60 lb ft)
    • plus 180 degrees
    • plus 15 degrees
    16. Fig 6: Rear Suspension Support Front Reinforcement Bolts
    GM2842099Courtesy of GENERAL MOTORS COMPANY
  16. Install and tighten NEW the rear suspension support front reinforcement bolts (1) to:
    • 150 (111 lb ft)
    • plus 30 degrees
    • plus 15 degrees
  17. Install the rear stabilizer shaft. Refer to Stabilizer Shaft Replacement .
  18. Install the differential carrier assembly, if equipped. Refer to Differential Carrier Assembly Replacement .
  19. Install the air springs. Refer to Rear Air Spring Replacement .
  20. Install the rear suspension knuckles. Refer to Knuckle Replacement (AWD) , Knuckle Replacement (FWD) .
  21. Install the park brake cables. Refer to Parking Brake Cable Replacement (J64) , Parking Brake Cable Replacement (J55) .
  22. Tighten the nuts on the adjust link. Refer to Adjust Link Replacement .
  23. Tighten the nuts on the upper control arm. Refer to Upper Control Arm Replacement .
  24. Install the exhaust system. Refer to Exhaust Muffler Replacement (FWD) , Exhaust Muffler Replacement (AWD) .
  25. Reconnect the electronic suspension rear position sensor. Refer to Electronic Suspension Rear Position Sensor Replacement .
  26. Tighten the bolts on the lower control arm. Refer to Lower Control Arm Replacement .
  27. Install the left rear underbody air deflector. Refer to Underbody Rear Air Deflector Replacement - Left Side .
  28. Install the right rear underbody air deflector. Refer to Underbody Rear Air Deflector Replacement - Right Side .
  29. Align the rear suspension. Refer to Wheel Alignment Specifications .
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