Rear Disc Brake Run-Out Check And Correction

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Remove the caliper support; then raise the caliper assembly upward and secure it with a wire.
Check the disc surface for grooves, cracks and rust. Clean the disc thoroughly and remove all rust.

Fig 1: Removing Caliper Support Mounting Bolts
Courtesy of DAIMLERCHRYSLER CORPORATION
Place a dial gauge approximately 5 mm (0.2 inch) from the outer circumference of the brake disc, and measure the run-out of the disc.
Limit: 0.08 mm (0.003 inch)

Fig 2: Measuring Run-Out Of Disc
Courtesy of DAIMLERCHRYSLER CORPORATION
If the runout of the brake disc is the limit value or more, change the phase of the disc and hub, and then measure the run-out again.
1. Before removing the brake disc, place a mating mark on both the wheel stud and disc with chalk where the run-out is greatest.
  
  Fig 3: Identifying Chalk Mark
  Courtesy of DAIMLERCHRYSLER CORPORATION
2. Place a dial gauge as shown in the illustration, and then move the hub in the axial direction and measure the play.
  Limit: 0.05 mm (0.002 inch)
  
  Fig 4: Measuring Play
  Courtesy of DAIMLERCHRYSLER CORPORATION
3. If the play does not exceed the limit install the brake disc at a different phase, and then check the run-out of the brake disc again.
If the run-out cannot be corrected by changing the phase of the brake disc, replace the disc.

Fig 5: Measuring Run-Out Of Brake Disc
Courtesy of DAIMLERCHRYSLER CORPORATION