1965 Tempest & GTO Speedometer Gear usage Chart | ||||||||||||
Driven Gear Or Sleeve | Tire Size | Speedometer Adapter | ||||||||||
Rear End Ratio | Part # | Teeth | Color | 6.95 x 14 | 7.35 x 14 | 7.75 x 14 | 8.15 x 15 | Model | Ratio | Part # | Color | Fitting & Seal Assy |
3.36 | 3987920 | 20 | BLUE | X | X | |||||||
3.36 | 3860344 | 21 | RED | X | X | |||||||
4.33 | 9781826 | 19 | ORANGE | X | ||||||||
3.90 | 9780523 | 17 | BLACK | X | ||||||||
3.90 | 9780522 | 18 | GREEN | X | ||||||||
3.55 | 3860344 | 21 | RED | X | X | |||||||
3.08 | 3860341 | 18 | BROWN | X | ||||||||
3.08 | 3860342 | 19 | NATURAL | X | X | |||||||
3.08 | 3987920 | 20 | BLUE | X | ||||||||
3.23 | 3860342 | 19 | NATURAL | X | ||||||||
3.23 | 3987920 | 20 | BLUE | X | ||||||||
3.23 | 3860344 | 21 | RED | X | ||||||||
Information supplied by George Pearson, taken from a Pontiac Parts Book | ||||||||||||