Disc Brake Specifications
NOTE:
For additional information on S & T Series rear disc brakes, see REAR DISC BRAKES - S & T SERIES
article.
DISC BRAKE SPECIFICATIONS
| Application | In. (mm) | ||||
|---|---|---|---|---|---|
| Lateral Runout (All Models) | .004 (.10) | ||||
| Parallelism (All Models) | .0005 (.013) | ||||
| Original Thickness | |||||
| Astro & Safari | |||||
| 2WD | 1.04 (26.4) | ||||
| AWD | 1.25 (31.75) | ||||
| Silhouette, Trans Sport & Venture | 1.26 (32.0) | ||||
| "S" & "T" Series | |||||
| Front - JM3 (Brake Booster: 260 MM, Tandem High Flow) | 1.03 (26.2) | ||||
| Front - JC-1 (Brake: Vac. Power, 4 Whl Disc, 5500 Lbs.) | 1.14 (29) | ||||
| Rear - JC1 (Brake: Vac. Power, 4 Whl Disc, 5500 Lbs.) | .787 (20) | ||||
| All Others | |||||
| 11.57" Rotor ("C" & "K" Series) | 1.25 (31.8) | ||||
| 11.86" Rotor (Express, G-Van & Savana) | 1.29 (32.8) | ||||
| 12.50" Rotor ("C" & "K" Series) | 1.26 (32.0) | ||||
| 12.50" Rotor (Express, G-Van, Savana & "P" Series) | 1.28 (32.5) | ||||
| 12.50" Rotor ("C" & "K" Series) | 1.50 (38.1) | ||||
| 12.50" Rotor (Express, G-Van, Savana & "P" Series) | 1.54 (39.1) | ||||
| 13.75" Rotor ("C", "K" & "P" Series) | 1.54 (39.1) | ||||
| 14.25" Rotor ("C" & "K" Series) | 1.54 (39.1) | ||||
| Minimum Refinish Thickness (1) | |||||
| Astro, Safari | |||||
| 2WD | .980 (24.89) | ||||
| AWD | 1.230 (31.25) | ||||
| Silhouette, Trans Sport & Venture | 1.224 (31.08) | ||||
| "S" & "T" Series | |||||
| Front - JM3 (Brake Booster: 260 MM, Tandem High Flow) | .980 (24.89) | ||||
| Front - JC-1 (Brake: Vac. Power, 4 Whl Disc, 5500 Lbs.) | 1.10 (28) | ||||
| Rear - JC1 (Brake: Vac. Power, 4 Whl Disc, 5500 Lbs.) | .748 (1920) | ||||
| All Others | |||||
| 11.57 X 1.25" Rotor ("C" & "K" Series) | 1.230 (31.24) | ||||
| 11.86 X 1.29" Rotor (Express, G-Van & Savana) | 1.230 (31.24) | ||||
| 12.50 X 1.26" Rotor ("C" & "K" Series) | 1.230 (31.24) | ||||
| 12.50 X 1.28" Rotor (Express, G-Van, Savana & "P" Series) | 1.230 (31.24) | ||||
| 12.50 X 1.50" Rotor ("C" & "K" Series) | 1.480 (37.59) | ||||
| 12.50 X 1.54" Rotor (Express, G-Van, Savana & "P" Series) | 1.480 (37.59) | ||||
| 13.75 X 1.54" Rotor ("C", "K" & "P" Series) | 1.480 (37.59) | ||||
| 14.25 X 1.54" Rotor ("C" & "K" Series) | 1.480 (37.59) | ||||
| Discard Thickness | |||||
| Astro, Safari | |||||
| 2WD | .965 (24.51) | ||||
| AWD | 1.215 (30.86) | ||||
| Silhouette, Trans Sport & Venture | 1.209 (30.7) | ||||
| "S" & "T" Series | |||||
| Front - JM3 (Brake Booster: 260 MM, Tandem High Flow) | .965 (24.51) | ||||
| Front - JC-1 (Brake: Vac. Power, 4 Whl Disc, 5500 Lbs.) | 1.08 (27.5) | ||||
| Rear - JC1 (Brake: Vac. Power, 4 Whl Disc, 5500 Lbs.) | .728 (18.5) | ||||
| All Others | |||||
| 11.57 X 1.25" Rotor ("C" & "K" Series) | 1.215 (30.86) | ||||
| 11.86 X 1.29" Rotor (Express, G-Van & Savana) | 1.215 (30.86) | ||||
| 12.50 X 1.26" Rotor ("C" & "K" Series) | 1.215 (30.86) | ||||
| 12.50 X 1.28" Rotor (Express, G-Van, Savana & "P" Series) | 1.215 (30.86) | ||||
| 12.50 X 1.50" Rotor ("C" & "K" Series) | 1.465 (37.21) | ||||
| 12.50 X 1.54" Rotor (Express, G-Van, Savana & "P" Series) | 1.465 (37.21) | ||||
| 13.75 X 1.54" Rotor ("C", "K" & "P" Series) | 1.465 (37.21) | ||||
| 14.25 X 1.54" Rotor ("C" & "K" Series) | 1.465 (37.21) | ||||
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