G 20 Van V8-379 6.2L DSL (1987)
Brake Rotor/Disc: Specifications
GM brake systems are identified by Regular Production Option (RPO) codes. For further information on RPO codes see Application and ID.
RPO JB3, JB5, JB6, JB7, JD3, JD5, JD6, JD7
RPO JB8, JF9
Nominal Thickness
1.28 in
1.53 in
Minimum Refinish Thickness 1.23 in
1.48 in
Discard Thickness
1.215 in
1.465 in
