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switching to 4.10s

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Old Jul 12, 2007 | 12:18 PM
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  #11  
BlackHorse99's Avatar
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Default RE: switching to 4.10s
pop the cover off and count the ring gear and the pinion gear teethand divide the ring by the pinion= gear ratio
 
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Old Jul 13, 2007 | 12:08 PM
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You can have the vin checked, or jack up the rear end, put the tranny in nuetral, and count how many times thedriveshaft turns to 1 turn of the tire. This will give you an approximate idea.
 
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Old Jul 13, 2007 | 03:48 PM
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well i called the dealership and they told me 273's does this sound right?
 
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Old Jul 13, 2007 | 03:55 PM
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holy crap, u wanna go 200 mph?
 
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Old Jul 13, 2007 | 03:57 PM
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hahahaha, the guy at the dealership was like wow thats so high!!!
 
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Old Jul 13, 2007 | 03:58 PM
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what do you cruise 65 at 1000 rpm?
 
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Old Jul 13, 2007 | 04:00 PM
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id say prob closer to about 1500rpms
 
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Old Jul 13, 2007 | 04:07 PM
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must be good mileage....
 
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Old Jul 13, 2007 | 04:09 PM
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well im still having some idling problems besides the fact that im still breakin the 350 in, but im averaging about 15 or so in the city havent gotten a good chance to go down the highway on any trips.
 
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Old Jul 13, 2007 | 05:35 PM
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I would guess the guy at the dealer madea mistake. It is probably 3.73. I don't think GM even offered a 2.73 in 2wd then. That would be rediculously high and undriveable.
 
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