K 2500 Truck 4WD V8-379 6.2L DSL VIN J FI (1992)
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 JB5, JD5, JB6, JD6*
RPO JB7, JD7*
RPO JB8* RPO JF9*
Nominal Thickness
1.25 in
1.26 in
1.5 in
1.54 in
Minimum Refinish Thickness
1.23 in
1.23 in
1.48 in
1.48 in
Discard Thickness
1.215 in
1.215 in
1.465 in
1.465 in
Thickness Variation (parallelism)
0.0005 in
0.0005 in
0.0005 in
0.0005 in
Run Out (TIR)
0.004 in
0.004 in
0.004 in
0.004 in
