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Old Sep 4, 2004 | 03:28 AM
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bronco gearing

a 1989 bronco with a 5.8 and now has factory 3.55 gears front and back,,, i bought 35" tires and want to know the best ratio i can go with the gearing,,,truck is used for highway and offroad so i dont want to get killed on gas and repairs
 
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Old Sep 4, 2004 | 03:30 AM
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If it feels sluggish with the 3:55, I'd go to 3:73....
 
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Old Sep 4, 2004 | 08:05 AM
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...moved...
 
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Old Sep 4, 2004 | 08:36 AM
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I've heard any tire over 33" go up to 4.11 or 4.56 (I think the 4.11's would do well with 35")
 
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Old Sep 4, 2004 | 09:07 AM
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I have the 4:10's in my 88. I really like the swap and I only have 31 inch tires. It just gave me all around better pickup and really helps you climb the hills.
 
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Old Sep 4, 2004 | 04:12 PM
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Without a doubt, 4.10s are where you want to be.
 
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Old Sep 4, 2004 | 08:39 PM
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I am running 4.10 on my 88 with a 5.8 and 33's. I had 3.55's before and I can really feel the difference. I am planning to go with 35's and I am now wishing that I had gone with 4.56. If gas is a concern, I think you will be happy with the 4.10's.
 
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Old Sep 5, 2004 | 09:45 AM
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Stock 31" tires and 3.55 gears = 35" tires and 4.10 gears. Go to 4.56 if you want lower gearing than stock (May hurt gas on the highway). And Yes it does make a big Difference in power. Your gas milage will even improve if you don't drive real fast(As opposed to 3.55/35" combination not stock)
 
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Old Sep 21, 2004 | 11:54 AM
  #9  
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i have decided to go with the 4.56 gears i hope its the right choice
 
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Old Sep 21, 2004 | 12:17 PM
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Hell yeah, 4.56 will rock on that truck!
 
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Old Sep 21, 2004 | 04:59 PM
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4.56 is the way to go. i have an AOD tranny so when i go to 35's i may even go to a 4.88 just to have a little extra especially if i tow with it.
 
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