GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

3:73 vs 4:10 Gears

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Old 10-05-2010 | 09:07 AM
  #41  
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just an fyi take it how you want.

i went 13.0 @ 103.8 on 3:42s
i went 13.0 @ 104.2 on 4:10s
i gained mpg in city, lost .5-.75mpg on the highway. the truck is a lot more fun to drive. i dont have huge *** rims but i do DD it and i do roll race it.

if i had it over to do again id stay where im at simply because I like it. the 3:90 is a good gear, works the same as 4:10/4:11s, which are the same gear, different brands offer the "4:10" other brands offer "4:11s" you will never see a difference in them simply bc they are so close. anyways. 3:90s are good for someone who doesnt race all the time, doesnt roll race, but stays on the highway more than the average truck. just a thought...where do you spend most of your time driving?
Old 10-05-2010 | 09:23 AM
  #42  
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Originally Posted by iamkeniff
just an fyi take it how you want.

i went 13.0 @ 103.8 on 3:42s
i went 13.0 @ 104.2 on 4:10s
i gained mpg in city, lost .5-.75mpg on the highway. the truck is a lot more fun to drive. i dont have huge *** rims but i do DD it and i do roll race it.

if i had it over to do again id stay where im at simply because I like it. the 3:90 is a good gear, works the same as 4:10/4:11s, which are the same gear, different brands offer the "4:10" other brands offer "4:11s" you will never see a difference in them simply bc they are so close. anyways. 3:90s are good for someone who doesnt race all the time, doesnt roll race, but stays on the highway more than the average truck. just a thought...where do you spend most of your time driving?
good thing to consider, where it is you drive your truck. I personally do a lot of city driving and plenty of roll racing
i think 4.10's work for me
Old 10-05-2010 | 09:54 AM
  #43  
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Originally Posted by blackjack325
good thing to consider, where it is you drive your truck. I personally do a lot of city driving and plenty of roll racing
i think 4.10's work for me
yeah 4:10s will be best for you. but the OP who may do more highway trips than you and i may want more mpg. that was his first question if i recall....

with the 3600 converter i get 14ish mpg in city and 19.2ish on the highway.
Old 10-05-2010 | 10:00 AM
  #44  
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thats not bad City MPG...
im seeing 12.7 city with my 3K circle D, highway is better than it was stock
21 @ 70-75 MPH

still have the 3.73 gears, i think ill see a bit less city/highway MPG as soon as i get the 4.10's in... but i dont mind
Old 10-05-2010 | 10:05 AM
  #45  
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I do mostly in town driving. When I am on the highway i'm not worried about the mileage it gets. I would have bought a prius if I wanted that LOL. I do play a lot in it too. So thats just another reason to get the 4:10's. Thanks for the input.
Old 10-05-2010 | 10:29 AM
  #46  
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4:10s is your best way to go then sir. i think you're going to be happy.

i fill up and drive lol i dont care what mpg i get. i work to enjoy my truck, not let it sit. im with you betz lol if i was worried with gas mileage id buy a prius or hell even a smart car.
Old 10-05-2010 | 10:33 AM
  #47  
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Originally Posted by iamkeniff
just an fyi take it how you want.

i went 13.0 @ 103.8 on 3:42s
i went 13.0 @ 104.2 on 4:10s
i gained mpg in city, lost .5-.75mpg on the highway. the truck is a lot more fun to drive. i dont have huge *** rims but i do DD it and i do roll race it.

So you didn't see any ET reduction from the gear change? That's interesting. Was that because it spun (more)?


if i had it over to do again id stay where im at simply because I like it. the 3:90 is a good gear, works the same as 4:10/4:11s, which are the same gear, different brands offer the "4:10" other brands offer "4:11s" you will never see a difference in them simply bc they are so close. anyways. 3:90s are good for someone who doesnt race all the time, doesnt roll race, but stays on the highway more than the average truck. just a thought...where do you spend most of your time driving?
I agree. 3.90s are a good all around gear (unless you have tall tires). There is no way that you could even measure the difference between a 4.10 and a 4.11 (or a 4.56 and a 4.57)
Old 10-05-2010 | 10:35 AM
  #48  
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im swapping to a 305/50/20 when i can so the 4:10s are going to be ok with me
Old 10-05-2010 | 11:05 AM
  #49  
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Originally Posted by betz13
I do mostly in town driving. When I am on the highway i'm not worried about the mileage it gets. I would have bought a prius if I wanted that LOL. I do play a lot in it too. So thats just another reason to get the 4:10's. Thanks for the input.
Originally Posted by iamkeniff
4:10s is your best way to go then sir. i think you're going to be happy.

i fill up and drive lol i dont care what mpg i get. i work to enjoy my truck, not let it sit. im with you betz lol if i was worried with gas mileage id buy a prius or hell even a smart car.
How many times did I say that during this ******* thread?
Old 10-05-2010 | 11:08 AM
  #50  
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Im gonna go from 3.73 to 4.10's and i daily drive,

Hell TBSS awd's come with 4:10s stock and run real nice!


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