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Trying to find my gear ratio

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  #11  
Old 02-17-2010, 11:01 PM
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I read a lot of mixed 3.55 and 3.92 reviews and specs, glad to know i dont have to do a 4.10 gear switch right now haha.
 
  #12  
Old 02-18-2010, 12:14 PM
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Factory 20's (not dealer installed) automatically come with 3.92's.
 
  #13  
Old 02-18-2010, 12:21 PM
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Ya thats what i thought i knew, but i looked up my truck online and saw one review saying it had 3.55's, so i got paranoid.
 
  #14  
Old 02-20-2010, 09:43 PM
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Factory 20's also automatically got you a power steering cooler (don't know if that changed down the line or not).
 
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Old 02-20-2010, 11:49 PM
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Originally Posted by HemiLonestar
Factory 20's also automatically got you a power steering cooler (don't know if that changed down the line or not).
i got factory 17's and a power steering cooler.
 
  #16  
Old 02-21-2010, 03:27 AM
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Would yours being a 3/4 have anything to do with that Dirty? Maybe the HD's come with the extra cooling components standard?
 
  #17  
Old 02-21-2010, 01:48 PM
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Very likely
 
  #18  
Old 02-21-2010, 09:50 PM
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Oh btw When one reads his tach at 65 it should read 1800 rpm with the 392's anthing lower is 3.55 4.10's will put you well over 2000 rpm. Another way to tell.
 



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