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Old Feb 3, 2008 | 03:57 PM
  #1  
motoguy's Avatar
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so i have a 4.8 ext cab 4x4. 4l60e tranny and im puttin 33's on it. she has 32's right now and it dogs her so when i go 33's im gonna regear. i know the formula old tire?new tie times new gear equals true ratio but. straight up what would be a good gear with those tires and my little engine. im thinkin 4.10s but i drive to cali alot. dont want to sacrafice to much mpg and she def needs some help towing. i have a 18 ft bayliner and it struggles up and down hills. so what do you think?
 
Old Feb 3, 2008 | 03:59 PM
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ORIGINAL: motoguy

so i have a 4.8 ext cab 4x4. 4l60e tranny and im puttin 33's on it. she has 32's right now and it dogs her so when i go 33's im gonna regear. i know the formula old tire/new tire times new gear equals true ratio but. straight up what would be a good gear with those tires and my little engine. im thinkin 4.10s but i drive to cali alot. dont want to sacrafice to much mpg and she def needs some help towing. i have a 18 ft bayliner and it struggles up and down hills. so what do you think?
 
Old Feb 3, 2008 | 04:20 PM
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what gears do you have now?
 
Old Feb 3, 2008 | 10:01 PM
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3.73 is a good gear to be able to tow and accelerate without giving up MPG.
 
Old Feb 4, 2008 | 12:58 AM
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i have 3.73's right now and they are sturggling
 
Old Feb 4, 2008 | 03:29 AM
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then 4.10s would be a pretty good option i think 4.56 would be a little overkill tho.
 
Old Feb 4, 2008 | 11:50 AM
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The TQM will seem much more limiting with bigger tires. That might be what you are feeling, with the stuggling and all.
 
Old Feb 4, 2008 | 09:20 PM
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yeah if you already have 3.73s id go 4.10... 4.56 would definitely be overkill with 33s though
 
Old Feb 5, 2008 | 07:45 AM
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33s shouldn't be making it struggle tho, just a little slower.
 
Old Feb 5, 2008 | 10:29 AM
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true... my 4.8 dogs on 32s a little but i have 3.42s
 



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