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My 1976 Nova SS NovaResource
GM Speedometer Recalibration
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Small Speedometer Gear Chart
(3/4" diameter)

Ratio Trans
Gear 		Speedo
Gear
0.94 18 17
1.00 17 17
1.00 18 18
1.06 16 17
1.06 17 18
1.06 18 19
1.11 18 20
1.12 16 18
1.12 17 19
1.13 15 17
1.17 18 21
1.18 17 20
1.19 16 19
1.20 15 18
1.21 14 17
1.22 18 22
1.24 17 21
1.25 16 20
1.27 15 19
1.28 18 23
1.29 14 18
1.29 17 22
1.31 13 17
1.31 16 21
1.33 15 20
1.33 18 24
1.35 17 23
1.36 14 19
1.38 13 18
1.38 16 22
1.40 15 21
1.41 17 24
1.42 12 17
1.43 14 20
1.44 16 23
1.46 13 19
1.47 15 22
1.50 12 18
1.50 14 21
1.50 16 24
1.53 15 23
1.54 13 20
1.55 11 17
1.57 14 22
1.58 12 19
1.60 15 24
1.62 13 21
1.64 11 18
1.64 14 23
1.67 12 20
1.69 13 22
1.70 10 17
1.71 14 24
1.73 11 19
1.75 12 21
1.77 13 23
1.80 10 18
1.82 11 20
1.83 12 22
1.85 13 24
1.89 9 17
1.90 10 19
1.91 11 21
1.92 12 23
2.00 9 18
2.00 10 20
2.00 11 22
2.00 12 24
2.09 11 23
2.10 10 21
2.11 9 19
2.12 8 17
2.18 11 24
2.20 10 22
2.22 9 20
2.25 8 18
2.30 10 23
2.33 9 21
2.38 8 19
2.40 10 24
2.43 7 17
2.44 9 22
2.50 8 20
2.56 9 23
2.57 7 18
2.62 8 21
2.67 9 24
2.71 7 19
2.75 8 22
2.86 7 20
2.88 8 23
3.00 7 21
3.00 8 24
3.14 7 22
3.29 7 23
3.43 7 24
Large Speedometer Gear Chart
(1-1/2" diameter)

Ratio Trans
Gear 		Speedo
Gear
1.89 18 34
1.94 18 35
2.00 17 34
2.00 18 36
2.06 17 35
2.06 18 37
2.11 18 38
2.12 17 36
2.13 16 34
2.17 18 39
2.18 17 37
2.19 16 35
2.22 18 40
2.24 17 38
2.25 16 36
2.27 15 34
2.28 18 41
2.29 17 39
2.31 16 37
2.33 15 35
2.33 18 42
2.35 17 40
2.38 16 38
2.39 18 43
2.40 15 36
2.41 17 41
2.43 14 34
2.44 16 39
2.44 18 44
2.47 15 37
2.47 17 42
2.50 14 35
2.50 16 40
2.50 18 45
2.53 15 38
2.53 17 43
2.56 16 41
2.57 14 36
2.59 17 44
2.60 15 39
2.62 13 34
2.62 16 42
2.64 14 37
2.65 17 45
2.67 15 40
2.69 13 35
2.69 16 43
2.71 14 38
2.73 15 41
2.75 16 44
2.77 13 36
2.79 14 39
2.80 15 42
2.81 16 45
2.83 12 34
2.85 13 37
2.86 14 40
2.87 15 43
2.92 12 35
2.92 13 38
2.93 14 41
2.93 15 44
3.00 12 36
3.00 13 39
3.00 14 42
3.00 15 45
3.07 14 43
3.08 12 37
3.08 13 40
3.09 11 34
3.14 14 44
3.15 13 41
3.17 12 38
3.18 11 35
3.21 14 45
3.23 13 42
3.25 12 39
3.27 11 36
3.31 13 43
3.33 12 40
3.36 11 37
3.38 13 44
3.40 10 34
3.42 12 41
3.45 11 38
3.46 13 45
3.50 10 35
3.50 12 42
3.55 11 39
3.58 12 43
3.60 10 36
3.64 11 40
3.67 12 44
3.70 10 37
3.73 11 41
3.75 12 45
3.78 9 34
3.80 10 38
3.82 11 42
3.89 9 35
3.90 10 39
3.91 11 43
4.00 9 36
4.00 10 40
4.00 11 44
4.09 11 45
4.10 10 41
4.11 9 37
4.20 10 42
4.22 9 38
4.25 8 34
4.30 10 43
4.33 9 39
4.38 8 35
4.40 10 44
4.44 9 40
4.50 8 36
4.50 10 45
4.56 9 41
4.62 8 37
4.67 9 42
4.75 8 38
4.78 9 43
4.86 7 34
4.88 8 39
4.89 9 44
5.00 7 35
5.00 8 40
5.00 9 45
5.12 8 41
5.14 7 36
5.25 8 42
5.29 7 37
5.38 8 43
5.43 7 38
5.50 8 44
5.57 7 39
5.62 8 45
5.71 7 40
5.86 7 41
6.00 7 42
6.14 7 43
6.29 7 44
6.43 7 45

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Main Page Copyright © 1999 Scott Windle Created on: 09/08/99