Information supplied by George Pearson
|
1969 Firebird Speedometer Gear usage Chart |
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|
|
Driven Gear Or Sleeve |
Tire Size |
Speedometer Adapter |
|
|
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|
Rear End Ratio |
Part # |
Teeth |
Color |
E70 X 14 |
F70 X 14 |
7.75 X 14 |
F78 X 14 |
E78 X 14 |
Model |
Ratio |
Part # |
Color |
Trans Code |
Drive Gear Teeth |
|
3.08 |
3870351 |
17 |
PURPLE |
|
X |
X |
|
|
|
|
|
|
FF |
7 |
|
3.23 |
3860341 |
18 |
BROWN |
X |
X |
|
X |
X |
|
|
|
|
FH-FF |
7 |
|
3.23 |
3870351 |
17 |
PURPLE |
|
|
X |
|
|
|
|
|
|
FF |
7 |
|
3.36 |
3860341 |
18 |
BROWN |
|
X |
X |
|
|
|
|
|
|
FF |
7 |
|
3.55 |
9780523 |
17 |
BLACK |
|
X |
|
|
|
|
|
|
|
FX |
6 |
|
3.55 |
3987920 |
20 |
BLUE |
X |
|
|
X |
X |
|
|
|
|
FH |
7 |
|
3.55 |
3860342 |
19 |
NATURAL |
|
X |
X |
|
|
|
|
|
|
FH-FF |
7 |
|
3.90 |
9780522 |
18 |
GREEN |
|
X |
X |
|
|
|
|
|
|
FX |
6 |
|
4.33 |
3860329 |
20 |
YELLOW |
|
X |
X |
|
|
|
|
|
|
FX |
6 |
|
Information supplied by George Pearson, taken from a Pontiac Parts Book |
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