Cutlass Supreme V6-191 3.1L VIN M SFI (1997)
Brake Drum: Specifications
Inside Diameter
8.863 in
Maximum lateral Runout
0.006 in
Maximum Rebore Diameter
0.006 in
Discard Diameter (A)
8.920 in
All brake drums have a discard dimension cast into them.
Replace any drum that does not meet this specification.
After refinishing drums, replace any drum that does not
meet the maximum rebore diameter or minimum thickness after
refinish specification