GMC 370 Tail Light Bulb Size
The GMC 370 tail light utilizes bulb sizes 63 and 67 for the rear illumination system. Data for the specified vehicle covers the period from 1951 through 1959.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Type | Shop |
|---|---|---|
| 1956-1959 | 67 | Check Price |
| 1951-1955 | 63 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W. | 67 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W. | 63 | Check Price |