Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Install a utility stand under the frame near the cage nut that you are replacing.

Fig 1: Identifying Utility Stand

Courtesy of GENERAL MOTORS CORP.

Remove and discard the frame bolt.
If you are replacing the front cage nut, remove the front impact bar in order to gain access. Refer to Impact Bar Replacement - Front Bumper in Bumpers.
If you are replacing the rear cage nut, perform the following steps in order to gain access.
1. Remove the carpet retainer. Refer to Carpet Retainer Replacement (Sedan) or Carpet Retainer Replacement (Coupe) in Interior Trim.
2. Pull back the carpet and the sound deadener in order to provide access to the floor pan sheet metal.
3. Locate the area directly above the cage nut.
  
  Fig 2: Locating Cage Nut Area
  Courtesy of GENERAL MOTORS CORP.
Use a cutoff wheel in order to cut a 100 mm (4 in) square access door.

Fig 3: Measuring Square Access Door

Courtesy of GENERAL MOTORS CORP.

Pry the access door open.
Use a chisel in order to break the spot welds (1) on one side of the frame crossmember nut retainer (3).

Fig 4: Identifying Frame Crossmember Nut Retainer Spot Welds

Courtesy of GENERAL MOTORS CORP.

Lift one side of the frame crossmember nut retainer.
Remove the frame crossmember nut (2).