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franlofter
Dodge Dakota
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5/04/2003
10:42:20
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 Subject: gear ratio 4.56??
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I was looking at prices for these rear end kits and this looks like a good bang for the buck mod. Is anyone running 4.56s with a 5 speed manual? I have 01 4.7 with the 3.92 gears now but I have 31" tires will I notice a big difference in low end going from 3.92s to 4.56s??
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franlofter
Dodge Dakota
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5/04/2003
10:44:14
| RE: gear ratio 4.56??
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I have a Dakota 4.7 2001 QC with 31" tires and first gear now is very low.
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franlofter
Dodge Dakota
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5/04/2003
12:54:45
| RE: gear ratio 4.56??
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Take a ride in your truck to ,say, 40 mph. If you have a 5 speed, you want to be in 4th gear (1 to 1 trans ratio). If you have an automatic, you want to lock out the OD and be in high gear. (1 to 1 trans ratio). Record the RPM you are turning.
Multiply the RPM x the tire diameter. Multiply the MPH x 336. Divide the first answer by the second answer. This is your gear ratio.
(I did this and I came up with 4.10 gear ratio I wonder if the gears were allready changed??)
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