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3.08 to 4.56 Gear swap?

Neutril

By Neutril
in Engines & Drivetrain

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NitroDatsik Senior Enthusiast

NitroDatsik

Posted
Posted

Should be able to get a 2010-2013 3.73 G80 locker for fairly cheap i would think. Would you be putting it in yourself? pinion angle is important. Since you are looking at swapping out the whole rear axle, pinion to ring tooth engagement would still be good.

 

Nice mesh pattern on yours btw Clint!

Yes I will be doing the work myself once I get my hands on the axle. It would make a good video for my YouTube channel.

 

2014 Silverado 2WT CC Summit White 4.3L V6

DROPKICK Edition

IG: jorge_dropkick_rangel

  • 2 weeks later...
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txmuder Enthusiast

txmuder

Posted
Posted

Clint D.......I swapped my gears on my truck as well and like you mentioned I was not really utilizing my upper gears except maybe on the highway, Mine has the 8 spd with 6.2L and my gas mileage seems to be better also since now it stays in 7-8 gear more without down shifting as much and also stays in 4V more and a lot easier where at highway speeds over 70-75 MPH it would never go to 4V.

My average city highway went from 15-16 to 17-19 mpg even getting up to 20.6 driving from Crosby to the medical center 5 time daily.Best move I could have made and the acceleration is outstanding.

  • 1 month later...
Kennith Pujol Enthusiast

Kennith Pujol

Posted
Posted

i have only about 20 miles on it so far, it shifts Faster then it did before, I now have 6th gear, and going over highway overpass and hills it stays in 6th gear, it does not down shift like it did before, I love it

 

 

Sent from my iPhone using Tapatalk

Hey man, do you ever feel like you should of did 4.88s instead with the 37s and 24s?I currently have 3.42s and getting the mcgaughys lift soon and 37s on 22s but am having a hard time with going 4.88s or 4.56s.

  • 1 month later...
NitroDatsik Senior Enthusiast

NitroDatsik

Posted
Posted

Hey guys I have a question, I don't know much about differentials or gears but I want to upgrade my stock 3.23 and open diff and according to the manual my v6 has the 8.6 10 bolt. So I found this item on eBay which looks like it will work but I want someone here with more knowledge to double check on it for me. Thank you.

 

http://pages.ebay.com/motors/link/?nav=item.view&id=391404647187&alt=web

 

 

2014 Silverado 2WT CC Summit White 4.3L V6

DROPKICK Edition

IG: jorge_dropkick_rangel

https://m.youtube.com/user/jorgerangel159

LongrangeLauber Senior Enthusiast

LongrangeLauber

Posted
Posted

Hey guys I have a question, I don't know much about differentials or gears but I want to upgrade my stock 3.23 and open diff and according to the manual my v6 has the 8.6 10 bolt. So I found this item on eBay which looks like it will work but I want someone here with more knowledge to double check on it for me. Thank you.

 

http://pages.ebay.com/motors/link/?nav=item.view&id=391404647187&alt=web

 

 

2014 Silverado 2WT CC Summit White 4.3L V6

DROPKICK Edition

IG: jorge_dropkick_rangel

https://m.youtube.com/user/jorgerangel159

Won't open on my phone for some reason so I can't help out
kd2dwj Enthusiast

kd2dwj

Posted
Posted

Okay so I was shopping around as I'm ready to pull the trigger on 4.56's for my '15.

 

I'm leaning towards the Truetrac for the rear end. Am I better off or should I dig into the Yukon unit a bit more?

 

Also is it worth to upgrade to the Yukon axle shafts?

 

As far as the front of is concerned do I just need to replace the ring and pinion gear, or will I need a new carrier as well?

 

Sorry about all the questions been a few years since I've done a gear swap, and even those were on muscle cars so this is a whole new ballgame for me

LongrangeLauber Senior Enthusiast

LongrangeLauber

Posted
Posted

Okay so I was shopping around as I'm ready to pull the trigger on 4.56's for my '15.

 

I'm leaning towards the Truetrac for the rear end. Am I better off or should I dig into the Yukon unit a bit more?

 

Also is it worth to upgrade to the Yukon axle shafts?

 

As far as the front of is concerned do I just need to replace the ring and pinion gear, or will I need a new carrier as well?

 

Sorry about all the questions been a few years since I've done a gear swap, and even those were on muscle cars so this is a whole new ballgame for me

Loved the Yukon in my 02 Silverado, are you upgrading or putting more power to the wheels in the future? If you are, get the new upgraded axle shafts, if not stick with the stock axle shafts. And for the front yes it will only be a ring and pinion replacement since the front is the same as the previous generation trucks.
kd2dwj Enthusiast

kd2dwj

Posted
Posted

It's got some upgrades on already, motors running headers and tune. But I was thinking with the 35's the axle shafts might be worth the upgrade?

LongrangeLauber Senior Enthusiast

LongrangeLauber

Posted
Posted

It's got some upgrades on already, motors running headers and tune. But I was thinking with the 35's the axle shafts might be worth the upgrade?

I was running a tune on my 02 Silverado with 4.88 gears and a hard shifting transmission as well as setting on 37-inch tires. Never had an issue from the time I put in the gears to the time I sold the truck, which was about 2 years. I was hard on the truck and surprisingly I didn't snap an axle, it is completely up to you though

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