G8 GT Rear End Swap - Page 3 - LS1TECH



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G8 GT Rear End Swap

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Old 03-13-2012, 06:56 AM   #41
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I got a 3.45 camaro rear i'm doing the posi mod then putting it in asap

I got the RotoFab CAI.
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Old 03-17-2012, 11:42 PM   #42
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I have the 3.27 gears and very nice mod for my car. 0 to scare the s--t out of you for sure.
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Old 12-04-2012, 12:58 PM   #43
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Default camaro to G8 diff swap

I have been told that when doing the camaro to g8 diff swap, you have to replace the axle also. Due to the mounts and splines.
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Old 12-04-2012, 01:03 PM   #44
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I have been told that when doing the camaro to g8 diff swap, you have to replace the axle also. Due to the mounts and splines.
That is 100% false.

No axel swap needed.
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Old 04-14-2013, 12:44 PM   #45
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Hey guys i have 2009 G8 GT im new to the forum, i also have a 3.27 camaro rear and i love it. ALOT faster off the line and gained alot of midrange power which is exactly what i was shooting for since i only use it for street use.
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Old 04-29-2013, 03:28 PM   #46
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So conversely, will a G8 center section bolt up right into a 2010 Camaro SS?

I'm looking for a whole center section so I can do 3.91's (maybe).
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Old 04-29-2013, 08:33 PM   #47
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So conversely, will a G8 center section bolt up right into a 2010 Camaro SS?

I'm looking for a whole center section so I can do 3.91's (maybe).
It would bolt up, but you would be going to a smaller housing and ring gear... Why not just get a 1LE diff? Probably cheaper by the time you buy the gears, rebuild kit, etc..
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Old 04-29-2013, 09:26 PM   #48
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So the G8 setup might be less sturdy?

A full 1LE diff is interesting but new they might be $1500?
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Old 02-11-2015, 06:22 PM   #49
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OP HERE,

I've seen a lot of comments, on several forums that tuning new gears is difficult.

I mentioned that to my tuner and he looked at me like I had three heads!!!!

Using HPTuner, he completed the tune is less than 5 minutes and it was spot on.

I checked miles per hour with my GPS and it was perfect.

He had to enter the tire size, and new gear numbers. Computer automatically made 103 changes to my setup.

As usual it comes down to the knowledge of the tuner.

Good Luck!!!
was your tuner brian from dynotune motorsports
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Old 02-11-2015, 07:45 PM   #50
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Yes!!

He is the man....
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Old 02-12-2015, 03:28 PM   #51
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Where are u guys buying the Camaro 3.45 differential for the G8 auto swap?
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Old 02-12-2015, 03:36 PM   #52
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They come up on Camaro5.com for example.
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Old 02-14-2015, 06:58 PM   #53
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They come up on Camaro5.com for example.
Any other places to find a 3.45 rear differential?
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Old 02-14-2015, 08:57 PM   #54
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Sometimes you see them on Flea Bay.....LOL

I missed the opportunity to 2 or 3 times in the last couple of months.

Seems like there have been more 3:91 gears and for me with an auto that maybe too much gear....

I still like my 3:27's but hoping for better ET's in the 1/4 mile.
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Old 03-31-2016, 08:37 PM   #55
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Has anyone heard of the Steel Clutch Disc and Shim Kit Upgrade?

http://www.ebay.com/itm/161069391388...84.m1555.l2649
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Old 09-10-2016, 06:16 AM   #56
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i am interested in the camaro 3.45 diff. does anyone know the part number of the diff. and where can i get one? is it okay to buy a used one?
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Old 09-29-2016, 04:40 AM   #57
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Keep hitting the bone years, if you can find a v6 rear end that was a 6 speed manual it's the same rear end as the ss. 3.42 post with the better axles.
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Old 09-29-2016, 04:55 AM   #58
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I have experience with both the GXP and the g5/ z/28 diff, yes they use the same axles, also confirmed by DSS.

And yes same with the G8/Holdens, V6s have same diffs as V8s, only difference is the V8 HSVs are shot peened and a little stronger.

The Camaro diff is a beefier unit for sure, much more webbing on the pumpkin.
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Old 01-17-2017, 11:41 PM   #59
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Default Diff swap ?

Did you swap the whole pumpkin on your pontiac g8 gt man ?
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Old 03-08-2017, 10:54 AM   #60
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what was the rpm difference on the freeway doing 75mph? curious what it is with the 3:45 as well. 1mpg isn't bad at all.
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