Mopar Speedometer Pinion NumbersTire Overall Diameter
Also Some Excel Worksheets, that figure the seedometer for you
For Auto Trans - AUTOMATICchart.xls
Manual Trans - 4SPEEDchart.xls
| AXLE RATIO |
24" |
26" |
28" |
30" |
| 2.76 |
2538930 |
2538928 |
2538926 |
2538924 |
| 2.94 |
2538932 |
2538930 |
2538928 |
2538926 |
| 3.21 |
2538935 |
2538933 |
2838931 |
2838929 |
| 3.55 |
2538939 |
2538936 |
2538933 |
2538931 |
| 3.91 |
2538943 |
2538940 |
2538937 |
2538935 |
| 4.10 |
2538945 |
2538942 |
2538939 |
2538936 |
| 4.30 |
|
2538944 |
2538941 |
2538938 |
| 4.56 |
|
2538945 |
2538943 |
2538940 |
Please note: these numbers are for the standard style pinion gear
also last two numbers are the number of teeth, 2538945 = 45 teeth
Thanks to Brewer's Performance Inc
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