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3.73 or 4.10 gears?

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Old 05-24-2006, 10:45 AM
  #11  
mustangman02232
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Default RE: 3.73 or 4.10 gears?

ORIGINAL: tomsa55

I'd go with the 3.73's. The 4.11's will drop your top end some and increased rpms at hiway speeds and will cost you in gas miliage. I put the 3.73's on my auto w/ a ford traction lock diff. Some increase in drivetrain noise, and higher rpms around 2300rpm at 65mph. My gas mileage is about 19.7 mpg. Thats a mix of highway and city driving, with a heavy foot You will need a tuner to adjust your speedo and help the transmission hit it's shift points properly. Have fun driving
4.10 = 7.5/8.8" rear
4.11 = 9" rear

people really need to stop interchanging TOP END with TOP SPEED, they will lower your theroretical top speed, and your top end will stay the same, it will just come up faster
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Old 05-25-2006, 02:16 AM
  #12  
Harry_F
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Default RE: 3.73 or 4.10 gears?

get the 3.73's ive heard only good thing about them
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Old 05-25-2006, 12:41 PM
  #13  
User 113021
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Default RE: 3.73 or 4.10 gears?

I was driving around town last night with the O/D off, and I couldn't even really tell a handling difference. It was just a bit louder. *Shrug*
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Old 05-25-2006, 06:56 PM
  #14  
TNT1968
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Default RE: 3.73 or 4.10 gears?

Has anyone here been quoted shop labor hours to swap gears and/or p-trac? Not price, just time please.
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Old 05-25-2006, 07:14 PM
  #15  
TNT1968
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Default RE: 3.73 or 4.10 gears?


ORIGINAL: mustangman02232

ORIGINAL: tomsa55

I'd go with the 3.73's. The 4.11's will drop your top end some and increased rpms at hiway speeds and will cost you in gas miliage. I put the 3.73's on my auto w/ a ford traction lock diff. Some increase in drivetrain noise, and higher rpms around 2300rpm at 65mph. My gas mileage is about 19.7 mpg. Thats a mix of highway and city driving, with a heavy foot You will need a tuner to adjust your speedo and help the transmission hit it's shift points properly. Have fun driving
4.10 = 7.5/8.8" rear
4.11 = 9" rear

people really need to stop interchanging TOP END with TOP SPEED, they will lower your theroretical top speed, and your top end will stay the same, it will just come up faster
Your first point is valid, but your second point is only valid if the gear ratio that you select does not take the engine out of its original peak HP rpm range.
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