Drum Brake Specifications
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 1999 Pontiac Montana, 1999 Oldsmobile Silhouette, 1999 Oldsmobile Bravada, 1999 GMC Yukon, and 1999 GMC Suburban. 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 Refinish Diameter | 9.56 (242.8) | |||
| Width | 2.00 (50.8) | |||
| Silhouette, Trans Sport & Venture | ||||
| Drum | ||||
| Original Diameter | 8.86 (225.0) | |||
| Discard Diameter | 8.92 (226.6) | |||
| Maximum Refinish Diameter | 8.91 (226.3) | |||
| Wheel Cylinder Diameter | .937 (23.80) | |||
| All Others | ||||
| Drum | ||||
| Original Diameter | 10.00 (254.0) 11.15 (283.2) 13.00 (330.2) |
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| Discard Diameter | ||||
| 10.00" Drum | 10.09 (256.3) | |||
| 11.15" Drum | 11.24 (285.5) | |||
| 13.00" Drum | 13.09 (332.5) | |||
| Maximum Refinish Diameter | ||||
| 10.00" Drum | 10.05 (255.3) | |||
| 11.15" Drum | 11.21 (284.7) | |||
| 13.00" Drum | 13.06 (331.7) | |||
| Width | ||||
| 10.00" Drum | 2.25 (57.0) | |||
| 11.15" Drum | 2.75 (69.9) | |||
| 13.00" Drum | 2.50 (63.5) Or 3.50 (88.9) | |||