| 1969 Tempest/GTO and Grand Prix Speedometer Gear Usage Chart (Turbo 400) | |||||||||||
| Speedo Driven Gear | Tire Size | Speedometer Adapter | |||||||||
| Rear axle ratio | Part No. | Teeth | Color | G78 X 14 | 8.25 X 14 | G70 X 14 | Part No. | Color | Sleeve & seal assy. | Trans code | Drive gear teeth |
| 2.56 | 9780628 | 35 | PINK | X | X | X | 1362294 | PT-PV | 18 | ||
| 2.78 | 1359272 | 38 | BLUE | X | X | X | 1362294 | PT-PV | 18 | ||
| 2.93 | 9780628 | 35 | PINK | X | 1362294 | PR-PW | 16 | ||||
| 2.93 | 1362048 | 40 | BLACK | X | X | X | 1362293 | PT-PV | 18 | ||
| 2.93 | 1359270 | 36 | WHITE | X | 1362294 | PR-PW | 16 | ||||
| 3.08 | 1362195 | 41 | YELLOW | X | X | 1362293 | PV-PW | 18-16 | |||
| 3.08 | 1362049 | 42 | GREEN | X | X | X | 1362293 | PV-PW | 18 | ||
| 3.08 | 1359271 | 37 | RED | X | 1362294 | PW | 16 | ||||
| 3.08 | 1359272 | 38 | BLUE | X | 1362294 | PW | 16 | ||||
| 3.23 | 1359273 | 39 | BROWN | X | X | 1362294 | PQ-PX-PR-PW-PZ | 16 | |||
| 3.23 | 9780470 | 44 | DK GREY | X | X | 1362293 | PT | 18 | |||
| 3.36 | 1362195 | 41 | YELLOW | X | X | 1362293 | PQ-PX-PR-PW-PZ | 16 | |||
| 3.36 | 9775187 | 45 | LT BLUE | X | X | 1362294 | PV | 18 | |||
| 3.55 | 1362196 | 43 | PURPLE | X | X | X | 1362293 | PS-PQ-PX-PR-PW-PZ | 16 | ||
| 3.90 | 1359270 | 36 | WHITE | X | 535615 | YELLOW | 1362294 | PQ-PX-PR-PW-PZ | 16 | ||
| 3.90 | 1359271 | 37 | RED | X | 535615 | YELLOW | 1362293 | PQ-PX-PR-PW | 16 | ||
| 4.33 | 1364028 | 40 | BLACK | X | 535615 | YELLOW | 1362293 | PQ-PX-PZ | 16 | ||
| 4.33 | 1362195 | 41 | YELLOW | X | 535615 | YELLOW | 1362293 | PQ-PX | 16 | ||
| Information supplied by George Pearson, taken from a Pontiac Parts Book | |||||||||||