Base V6 - 3.27 to 3.91 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

slipknotdude · 12-23-2025, 05:05 PM

Hey all, considering trying to switch gears on my 2013 V6 from 3.27 to 3.91. What I'm wondering is if the actual diff housing is the same between each trim, or if I'd need to buy a whole new thing to accomplish such thing... Which leads me to the next question, if I did have to buy a whole new diff housing will I need to get new half-shafts? Or would the same ones from the V6 work just as well? (any extra info would be great)

xstuntman · 12-23-2025, 06:24 PM

If you have a 1LS I believe it's just a gear swap as the center is the same as the SS cars.

If it's a 2LS like me then it's a smaller 2.92 carrier and you will need pretty much everything and the kitchen sink too.
But my knee isn't swelled up from rowing either so I got that going for me.

slipknotdude · 12-23-2025, 08:37 PM

Quote:

Originally Posted by xstuntman

If you have a 1LS I believe it's just a gear swap as the center is the same as the SS cars.

If it's a 2LS like me then it's a smaller 2.92 carrier and pretty much everything and the kitchen sink too.
But my knee isn't swelled up from rowing either so I got that going for me.

Honestly not sure if its a 1LS or a 2LS, all I know is that it's an LS 😂

ariZona28 · 12-23-2025, 08:50 PM

Auto or manual trans?

slipknotdude · 12-23-2025, 09:16 PM

Quote:

Originally Posted by ariZona28

Auto or manual trans?

Auto

ariZona28 · 12-24-2025, 04:51 AM

You have a 2LS w/2.92 gear ratio.
https://www.camaro5.com/forums/showthread.php?t=307690

slipknotdude · 12-25-2025, 04:40 PM

Quote:

Originally Posted by ariZona28

You have a 2LS w/2.92 gear ratio.
https://www.camaro5.com/forums/showthread.php?t=307690

ah okay, so then would i need to get a new diff/housing and all that for this??

xstuntman · 12-25-2025, 08:24 PM

You could check history here on Camaro5 as someone did this and it was center, gears, shafts and I believe hybrid u joint. Looked like a pain and my first instinct is to say 'just buy a V8'.

At one time you could buy a Detroit 3.55 gear set for the 2LS but I guess they were discontinued.

ariZona28 · 12-26-2025, 12:54 AM

Quote:

Originally Posted by slipknotdude

ah okay, so then would i need to get a new diff/housing and all that for this??

I've never looked into it to know the exact parts and pieces needed but yes, you'll need the 1LS, LT/V8 diff for improved gearing. Keep in mind you can get a 3.27 V8 auto diff or a 3.45 V8 manual diff if you can find a used unit at a reasonable price. A jump from 2.92 to 3.45 could be just what you are looking for, especially with the 6L50's wide 4.48:1 first gear.

12-23-2025, 05:05 PM	#1
slipknotdude Drives: 2013 Camaro LS Join Date: Jul 2025 Location: Las Cruces, NM Posts: 23	Base V6 - 3.27 to 3.91 Hey all, considering trying to switch gears on my 2013 V6 from 3.27 to 3.91. What I'm wondering is if the actual diff housing is the same between each trim, or if I'd need to buy a whole new thing to accomplish such thing... Which leads me to the next question, if I did have to buy a whole new diff housing will I need to get new half-shafts? Or would the same ones from the V6 work just as well? (any extra info would be great)

12-23-2025, 06:24 PM	#2
xstuntman Drives: 2012 Victory Red LFX Join Date: Dec 2012 Location: west central Texas Posts: 1,383	If you have a 1LS I believe it's just a gear swap as the center is the same as the SS cars. If it's a 2LS like me then it's a smaller 2.92 carrier and you will need pretty much everything and the kitchen sink too. But my knee isn't swelled up from rowing either so I got that going for me. __________________ '18 SS wheels, colored matched Heritage grille, actual driving lights, ZL1 strut tower brace, GM Performance billet aluminum fuel door, victory red rotors and calipers, 1/4 window American flags, splash guards, AEM dry panel air filter, Hot Wheels steering wheel and seat covers, Hot Wheels exterior emblems. Last edited by xstuntman; 12-24-2025 at 08:01 PM.

12-23-2025, 08:50 PM	#4
ariZona28 Give speed a chance Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019 Location: Mesa, Az Posts: 2,847	Auto or manual trans? __________________ 2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.

12-24-2025, 04:51 AM	#6
ariZona28 Give speed a chance Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019 Location: Mesa, Az Posts: 2,847	You have a 2LS w/2.92 gear ratio. https://www.camaro5.com/forums/showthread.php?t=307690 __________________ 2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.

12-25-2025, 08:24 PM	#8
xstuntman Drives: 2012 Victory Red LFX Join Date: Dec 2012 Location: west central Texas Posts: 1,383	You could check history here on Camaro5 as someone did this and it was center, gears, shafts and I believe hybrid u joint. Looked like a pain and my first instinct is to say 'just buy a V8'. At one time you could buy a Detroit 3.55 gear set for the 2LS but I guess they were discontinued. __________________ '18 SS wheels, colored matched Heritage grille, actual driving lights, ZL1 strut tower brace, GM Performance billet aluminum fuel door, victory red rotors and calipers, 1/4 window American flags, splash guards, AEM dry panel air filter, Hot Wheels steering wheel and seat covers, Hot Wheels exterior emblems.