Grand Prix V6-191 3.1L (1989)
Brake Rotor/Disc: Specifications
Nominal Thickness
Front 1.04 in
Rear
0.492 in
Minimum Refinish Thickness
Front 0.984 in
Note: All brake rotors have a discard dimension cast into
them. This is a wear dimension, not a refinish dimension.
Any rotor that does not meet specifications should be
discarded.
Rear
0.441 in
Thickness Variation (Parallelism)
Front 0.0005 in
Rear
0.0005 in
Lateral Runout (T.I.R.)
Front 0.004 in
Rear
0.004 in
