Montana AWD V6-3.4L VIN E (2004)
Brake Rotor/Disc: Specifications
Front Brakes - AWD
Rotor Thickness - NEW ............................................................................................................................................................................. 30.0 mm 1.181 in
Rotor Discard Thickness* .......................................................................................................................................................................... 27.0 mm 1.063 in
Rotor Maximum Allowable Assembled Lateral Runout ............................................................................................................................ 0.06 mm 0.002 in
Rotor Maximum Allowable Scoring .......................................................................................................................................................... 1.50 mm 0.059 in
Rotor Maximum Allowable Thickness Variation ..................................................................................................................................... 0.025 mm 0.001 in
Rotor Minimum Allowable Thickness After Refinish ................................................................................................................................ 28.4 mm 1.118 in
Front Brakes - FWD
Rotor Thickness - NEW ............................................................................................................................................................................... 32.2 mm 1.27 in
Rotor Discard Thickness* ............................................................................................................................................................................ 30.7 mm 1.21 in
Rotor Maximum Allowable Assembled Lateral Runout ............................................................................................................................ 0.06 mm 0.002 in
Rotor Maximum Allowable Scoring .......................................................................................................................................................... 1.50 mm 0.059 in
Rotor Maximum Allowable Thickness Variation ..................................................................................................................................... 0.025 mm 0.001 in
Rotor Minimum Allowable Thickness After Refinish ................................................................................................................................ 31.08 mm 1.22 in
Rear Brakes
Rotor Thickness - NEW ............................................................................................................................................................................. 11.0 mm 0.433 in
Rotor Discard Thickness* ............................................................................................................................................................................ 9.0 mm 0.354 in
Rotor Maximum Allowable Assembled Lateral Runout ............................................................................................................................ 0.06 mm 0.002 in
Rotor Maximum Allowable Scoring .......................................................................................................................................................... 1.50 mm 0.059 in
Rotor Maximum Allowable Thickness Variation ..................................................................................................................................... 0.025 mm 0.001 in
Rotor Minimum Allowable Thickness After Refinish .................................................................................................................................. 10.0 mm 0.39 in
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace
any rotor that does not meet the minimum thickness specifications.or, replace any rotor that does not meet the minimum thickness specifications.
The content of this article has been updated by manual update # 04-05-23-002A dated August 4, 2005 for Rotor Minimum Allowable Thickness After
Refinish.