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Old 11-30-2007, 07:59 PM   #151
trek757
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Default RE: GEARS

Hi. Just doing research and I was looking at Ford drag packs. I noticed that they sell a pack with 3.73's for the auto trans and a pack with 4.10's for the manual. This seems to be the opposite of what I've heard people recommending here on these threads. Any idea what Ford's reasoning might be? Thanks.
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Old 12-01-2007, 01:02 AM   #152
Colorado_Mustang
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Default RE: GEARS

The torque converter of an auto lets the engine rev a little higher right off the bat, allowing the use of higher speed gear ratios.
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Old 12-01-2007, 09:36 AM   #153
trek757
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Default RE: GEARS

Isee. The lower the numbers the higher the speed? Thanks for the info.
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Old 12-16-2007, 07:31 PM   #154
lewistk
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Default RE: GEARS

yes manual gears are always higher.
3.73's or 3.90's next project for me!
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Old 06-11-2009, 12:30 AM   #155
kelly3027
 
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Vehicle: 87 5.0 lx hatch
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I have a question or 2 about gearing. I've got a 5 liter lx with the AOD transmission. The car has 2.73's. I want to change these to 3.73's. I read that this would put red line in 3rd gear at around 100mph. It seems to me that it would be almost ideal for a stock or mildly modified car. 1/4 mile trap speed and red line at about the same time, right? Also does anyone know what sort of rpm's the car would turn at 80 mph , in OD? Seems like the perfect rear end for an AOD car. Kelly the noob.
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