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Old Feb 13, 2009 | 07:12 PM
  #41  
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I wouldn't touch those gears unless you have the cam to match it. Your truck is faster now with 3.23's than if you put 4.10's in and left everything else alone. Don't change gears unless you have a matching cam
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Old Feb 13, 2009 | 07:13 PM
  #42  
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Originally Posted by GmOnEy Z71
did you have to modify the plug wires any? Im gunna get some pretty soon so I was just wonderin
na, the passenger side is goes just fine...but the drivers side you just need to get kinda of creative with zip ties to make sure it doesnt lean up against the header...i even just turned the boot on the coil 180* to help and i havnt had any problems with mine...great set of headers
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Old Feb 13, 2009 | 07:14 PM
  #43  
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Oh and I stole this pic from another member but here'd the best thing to do with the plug wire near the hump:
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Old Feb 13, 2009 | 07:47 PM
  #44  
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sweet thanx guys i cant wait to get me some
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Old Feb 13, 2009 | 09:09 PM
  #45  
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Originally Posted by GMCtrk
should be low 14, possible even dip into the 13s. Your truck moves really well....swap to 4.10s and don't look back. Trust me, before you do another single mod swap to 4.10s.
I would. BUt it is good for n/a. But I am going swap to 3.42 right now I have 3.23. Cause I want keep lower gear for my turbo project in future.
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Old Feb 13, 2009 | 10:04 PM
  #46  
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your truck does pull hard! Sounds good too. Nice work.
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Old Feb 13, 2009 | 10:12 PM
  #47  
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Originally Posted by hirdlej
I wouldn't touch those gears unless you have the cam to match it. Your truck is faster now with 3.23's than if you put 4.10's in and left everything else alone. Don't change gears unless you have a matching cam
4.10s are a proven 1/2 second reduction in the quarter mile. The truck drives so much nicer with 4.10s isn't not even funny. It's much more in the powerband, especially cruising on the highway.


5.3tt06....I have some OEM 3.42s for sale if you're interested.
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Old Feb 13, 2009 | 10:15 PM
  #48  
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Originally Posted by GMCtrk
4.10s are a proven 1/2 second reduction in the quarter mile. The truck drives so much nicer with 4.10s isn't not even funny. It's much more in the powerband, especially cruising on the highway.
his streetablility may be better with what's there already though! For a DD it seems to run out pretty good!
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Old Feb 13, 2009 | 11:04 PM
  #49  
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Ya, I not know what next mods I should look for. To get MORE power!
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Old Feb 13, 2009 | 11:28 PM
  #50  
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Something's matched real nice with your truck right now, it pulls great!
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