I'm going with a 3.60 and a 31" tire on my setup. I do have a 4 link and fairly wide tires.
I like to chart the tire, gear, rpm combo. Makes it easy to see where you really are.
Looks like this.
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rear tire - 31" tall, 5843 multiplier
rear gear 3.60
trans gears multiplier
1 2.33 0.01099
2 1.48 0.01731
3 1.00 0.02562
OD 0.778 0.03292
1 2 3 OD
RPM | 8.388 | 5.328 | 3.600 | 2.801 |
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750 | 8.2 | | | |
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1000 | 11.0 | | | |
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1250 | 13.7 | | | |
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1500 | 16.5 | 26.0 | | |
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1750 | 19.2 | 30.3 | | |
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2000 | 22.0 | 34.6 | 51.2 | |
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2250 | 24.7 | 38.9 | 57.6 | 74.1 |
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2500 | 27.5 | 43.3 | 64.1 | 82.3 |
----------------------------------------------- 2600 = 86 mph cruise
2750 | 30.2 | 47.6 | 70.5 | 90.5 |
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3000 | 33.0 | 51.9 | 76.9 | 98.8 |
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3250 | 35.7 | 56.3 | 83.3 | 107.0 |
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3500 | 38.5 | 60.6 | 89.7 | 115.2 |
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3750 | 41.2 | 64.9 | 96.1 | 123.5 |
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4000 | 44.0 | 69.2 | 102.5 | 131.7 |
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4250 | 46.7 | 73.6 | 108.9 | 140.0 |
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4500 | 49.5 | 77.9 | 115.3 | 148.1 |
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4750 | 52.2 | 82.2 | 121.7 | |
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5000 | 55.0 | 86.6 | 128.1 | |
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5250 | 57.7 | 90.9 | 134.5 | |
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5500 | 60.4 | 95.2 | 140.1 | |
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5750 | 63.2 | 99.5 | 147.3 | |
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6000 | 65.9 | 103.9 | 153.7 | |
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6250 | 68.7 | 108.2 | 160.1 | |
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