GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

which gear 4.11 or 4.30

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Old Jul 27, 2010 | 04:48 PM
  #11  
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4.10 will complement that combo nicely...
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Old Jul 28, 2010 | 02:23 PM
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brand is motive, got em off ebay for $124 shipped. a buddy of mine works for a local gm dealer in service and is gunna put em in "under warranty" for me. im thinkin its gunna feel like a WHOLE diff truck or at least im hopin. its a damn turd outa the whole right now!
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Old Jul 28, 2010 | 02:32 PM
  #13  
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the diff from 3.23 to 4.10 should be a big one... it should knock that 2.8 60ft down quiet a bit too
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Old Jul 29, 2010 | 05:32 PM
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4.10s.... i picked up .5 in the 1/4 mile with my 4.8 when i went from 3.42 to 4.10.. you will be amazed.. right now its probably like a fat girl on a 10 spd trying to start off in 10th gear
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Old Jul 29, 2010 | 05:35 PM
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what size ss wheels are those?? you got any better pics???

hey i managed a 14.8 at 90ish with a 3000TT yank and 4.10s in a 2001 ext cab 4.8.. so you got some catching up to do... on small tires though...
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Old Jul 29, 2010 | 05:36 PM
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Originally Posted by fredkj3
right now its probably like a fat girl on a 10 spd trying to start off in 10th gear

i love that!
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Old Jul 29, 2010 | 05:57 PM
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Your gonna see a big difference. i had them in my last truck (wreck) and it would get up quicker than my current truck and it has 50 more horses!

It will also give you more towing power. Did you check your shift points?
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Old Jul 29, 2010 | 09:17 PM
  #18  
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Originally Posted by BlackGMC
i love that!
haha... in the grasss
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Old Jul 30, 2010 | 05:44 AM
  #19  
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You're going to love 4.10's over a 3.23 for sure, I think that's a perfect gear for your setup and future 30" tall tire. I'd like to go to 4.10's from my 3.73's, and I'm running a 31.1ish tall tire...
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Old Jul 31, 2010 | 08:56 AM
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fat girl, 10 speed....yep good analogy. had the gears installed yesterday and the diff is insane! i need to have the tune changed for the gears though seem my speedo is reading about 70mph when im doin 50 by the GPS. but 21-2150 rpm at 65 mph is pretty damn nice. no more downshiftin on hills. i think ill wait for the weather to cool down before tryin it at the track again though. the wheels are 20's. the truck needs a drop BAD was thinkin a 2/4
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