Suburban 3/4 Ton 4WD V8-379 6.2L DSL (1985)
Brake Rotor/Disc: Specifications
Rotor Thickness
Rotor Thickness
GM brake systems are identified by Regular Production Option (RPO) codes. For further information on RPO codes see Application and ID.
RPO JB1, JB3
RPO JB5, JB6, JB7, JD3, JD5
RPO JB8, JF9
Nominal Thickness
1.04 in
1.28 in
1.53 in
Minimum Refinish Thickness 0.98 in
1.23 in
1.48 in
Discard Thickness
0.965 in
1.215 in
1.465 in
