Drum Brake Specifications
WARNING: This page does not describe the selected car, but rather 46 other vehicles, including the 2001 Pontiac Montana, 2001 Pontiac Aztek, 2001 Oldsmobile Silhouette, 2001 Oldsmobile Bravada, and 2001 GMC Sonoma. However, it is still accessible from the selected car via links, so may be relevant.
DRUM BRAKE SPECIFICATIONS
| Application | In. (mm) | |||
|---|---|---|---|---|
| Astro, Safari, & "S" & "T" Series | ||||
| Drum | ||||
| Original Diameter | 9.50 (241.3) | |||
| Discard Diameter | 9.59 (243.6) | |||
| Maximum Allowable Diameter After Refinish Diameter | 9.56 (242.8) | |||
| Width | 2.00 (50.8) | |||
| Aztek | ||||
| Drum | ||||
| Discard Diameter | 9.902 (251.5) | |||
| Maximum Allowable Diameter After Refinish Diameter | 9.882 (251.0) | |||
| Allowable Radial Runout (Maximum) | .006 (.015) | |||
| Allowable Scoring (Maximum) | .06 (1.5) | |||
| Express & Savana | ||||
| Drum | ||||
| Original Diameter | ||||
| 1500 & 2500 Series | 11.15 (283.2) | |||
| 2500 (Diesel) & 3500 | 13.00 (330.2) | |||
| Discard Diameter | ||||
| 11.15" Drum | 11.24 (285.5) | |||
| 13.00" Drum | 13.09 (332.5) | |||
| Maximum Allowable Diameter After Refinish | ||||
| 11.15" Drum | 11.21 (284.7) | |||
| 13.00" Drum | 13.06 (331.7) | |||
| Width | ||||
| 11.15" Drum | 2.75 (69.9) | |||
| 13.00" Drum | 2.50 (63.5) Or 3.50 (88.9) | |||
| Montana, Silhouette & Venture | ||||
| Drum | ||||
| Original Diameter | 8.86 (225.0) | |||
| Discard Diameter | 8.92 (226.6) | |||
| Maximum Allowable Diameter After Refinish Diameter | 8.91 (226.3) | |||
| Wheel Cylinder Diameter | .937 (23.80) | |||