3.45 rear differential out of m6 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2010txss · 07-03-2012, 08:11 AM

I have a chance to put a rear differential out of a m6 into my camaro ss a6. Who has done this and what are the advantages and disadvantages?

MudderFinger · 07-03-2012, 08:16 AM

I did it and it help acceleration just a bit, but my main reason was so that I would turn about 200-300 more rpm crossing the 1/4 mile finish line in 4th gear.

2010txss · 07-03-2012, 08:18 AM

Did it hurt highway mpg's?

blazzin1 · 07-03-2012, 08:41 AM

Going from 3.27's to 3.45's will not be noticeable in your fuel mileage. In my own opinion, I don't think that is worth all the labor involved, or especially the cost to have it done. If you're going to upgrade, get some 3.70's....minimum. Just thinking out loud...Sorry!!!

BullF-16 · 07-03-2012, 12:24 PM

I sold my 3.45 diff to an A6 guy for 500 bucks. Sold it in a day, the guy drove up from houston to pick it up. He pm'd be back that he loves it and was pretty damn happy. Cant remember his user name here though.

BubbaSS · 07-03-2012, 01:12 PM

Advantages: quicker 0-60, city mpg should be better, easier to peel out (if you like that)...Disadvantages: highway mpg will lower, easier to lose traction

In reality the 3.45's will improve performance but will not feel too different over the 3.27's...Most guys with a6 will move to 3.70/3.73 to really feel the difference as mentioned above. Also, as Bblazzin said fuel cost will not be noticeable as the city gets better and highway gets worse it becomes a wash.

Hendrix-Engineering · 07-03-2012, 01:33 PM

Don't forget u will have to reflash the cumputer ,if u dont already have a tune this will cancel ur warranty ,im n the same boat with the wifes convertablr,I know it will help but i don't think its worth losing the waranty right now

BubbaSS · 07-03-2012, 02:11 PM

Here's a really good read...easy to follow:
http://www.automedia.com/Differentia...ht20011201rg/1

MudderFinger · 07-03-2012, 02:32 PM

I would say it was not really a noticiable difference. It help with my 60ft times too, but I also changed other things at the same time. It will make your speedo about 3 mph off unless you update the tune.

Quote:

Originally Posted by 2010txss

Did it hurt highway mpg's?

2010txss · 07-04-2012, 08:34 AM

Thanks everyone for the input. I decided to get the rear differential and I am glad I did plus I bought magnaflow 16483 cat back. Now the car sounds good and feels very alive when getting on it.

Hendrix-Engineering · 07-04-2012, 09:22 AM

Quote:

Originally Posted by MudderFinger

I would say it was not really a noticiable difference. It help with my 60ft times too, but I also changed other things at the same time. It will make your speedo about 3 mph off unless you update the tune.

It's not the speed o being off that's the concern its having the proper shift tune

2010txss · 07-04-2012, 09:56 AM

I had the shift tuned also.

07-03-2012, 08:11 AM	#1
2010txss Drives: 2010 camaro 2ss Join Date: May 2012 Location: Krum TX Posts: 152 View My Garage	3.45 rear differential out of m6 I have a chance to put a rear differential out of a m6 into my camaro ss a6. Who has done this and what are the advantages and disadvantages?

07-03-2012, 08:16 AM	#2
MudderFinger Drives: 2011 IOM SS/RS Join Date: Dec 2010 Location: Virginia Posts: 887 View My Garage	I did it and it help acceleration just a bit, but my main reason was so that I would turn about 200-300 more rpm crossing the 1/4 mile finish line in 4th gear. __________________ My Build Thread

07-03-2012, 12:24 PM	#5
BullF-16 USAF retired! Thank God! Drives: 2011 1SS, 1LT red,1LT/RS SGM 98Z28 Join Date: Jul 2011 Location: North Texas Posts: 2,799	I sold my 3.45 diff to an A6 guy for 500 bucks. Sold it in a day, the guy drove up from houston to pick it up. He pm'd be back that he loves it and was pretty damn happy. Cant remember his user name here though. __________________ HKE LSX427(Mast blk lbl 305 6bolt LS7heads, PatG231/246 blower cam, RWHP/TQ: 1281/1133 SNL Performance Custom Twin PT6766 BB turbos 4 to 25psi selectable on the Boost Leash controller, Squash dual 400LPH/ID2000s, ALKY 4 gal meth, Autometer AFR/Bst/oilpres/oiltemp/fuelpress gauges, Pedders Justice road crs pkg: All HD bushes, supercar 12kg coil overs, supercar ZL1 sways, camber plates all setup by JusticePete! :Gforce 9" 35spline S-Trac, 1500hp Outlaw axles, 3.5"alum DS, Monster Triple disc; 4xForgeline 19x10.5 4xBridgestone 305/30R19 RE-11, CTS-v calipers/rotors/Cobalt friction XR1/3 pads

07-03-2012, 01:12 PM	#6
BubbaSS WHAT RED LIGHT?! Drives: 2011 Black Camaro 2SS/RS M6 Join Date: Apr 2011 Location: Miami, Florida Posts: 1,115	Advantages: quicker 0-60, city mpg should be better, easier to peel out (if you like that)...Disadvantages: highway mpg will lower, easier to lose traction In reality the 3.45's will improve performance but will not feel too different over the 3.27's...Most guys with a6 will move to 3.70/3.73 to really feel the difference as mentioned above. Also, as Bblazzin said fuel cost will not be noticeable as the city gets better and highway gets worse it becomes a wash. __________________ 2011 2SS/RS M6 BLACK - VARARAM NO TUNE INTAKE, MODDED AND PORTED TB, PORTED INTAKE MANIFOLD, VITESSE THROTTLE CONTROLLER, DOUG THORLEY LT'S, CATLESS, X-PIPE, 25" STAINLESS WORKS RETRO CHAMBERED MUFFLERS, CUSTOM 2.5" MANDREL BENT EXHAUST, RICHMOND 4.10 GEARS, CUSTOM CAM (231/242 @ 114LSA), MUSTANG DYNO TUNED BY TORQ, 20% CERAMIC TINTS, EIBACH PROKIT SPRINGS 1" DROP, HAWK PERFORMANCE CERAMIC BRAKES, NITTO INVO TIRES, HYDROCARBON TAIL LIGHT AND FOG LIGHT BEZELS BY EMBLEMPROS, METRA DASH KIT, JVC KW-AV71BT, PHOENIX GOLD iAMP GM1, PASSPORT QI45 - 450 RWHP 415 RWTQ

07-03-2012, 02:11 PM	#8
BubbaSS WHAT RED LIGHT?! Drives: 2011 Black Camaro 2SS/RS M6 Join Date: Apr 2011 Location: Miami, Florida Posts: 1,115	Here's a really good read...easy to follow: http://www.automedia.com/Differentia...ht20011201rg/1 __________________ 2011 2SS/RS M6 BLACK - VARARAM NO TUNE INTAKE, MODDED AND PORTED TB, PORTED INTAKE MANIFOLD, VITESSE THROTTLE CONTROLLER, DOUG THORLEY LT'S, CATLESS, X-PIPE, 25" STAINLESS WORKS RETRO CHAMBERED MUFFLERS, CUSTOM 2.5" MANDREL BENT EXHAUST, RICHMOND 4.10 GEARS, CUSTOM CAM (231/242 @ 114LSA), MUSTANG DYNO TUNED BY TORQ, 20% CERAMIC TINTS, EIBACH PROKIT SPRINGS 1" DROP, HAWK PERFORMANCE CERAMIC BRAKES, NITTO INVO TIRES, HYDROCARBON TAIL LIGHT AND FOG LIGHT BEZELS BY EMBLEMPROS, METRA DASH KIT, JVC KW-AV71BT, PHOENIX GOLD iAMP GM1, PASSPORT QI45 - 450 RWHP 415 RWTQ

07-03-2012, 08:18 AM	#3
2010txss Drives: 2010 camaro 2ss Join Date: May 2012 Location: Krum TX Posts: 152 View My Garage	Did it hurt highway mpg's?

07-03-2012, 08:41 AM	#4
blazzin1 Drives: 2010 2SS/RS R6P Join Date: Nov 2008 Location: St. Cloud, FL Posts: 4,845 View My Garage	Going from 3.27's to 3.45's will not be noticeable in your fuel mileage. In my own opinion, I don't think that is worth all the labor involved, or especially the cost to have it done. If you're going to upgrade, get some 3.70's....minimum. Just thinking out loud...Sorry!!!

07-03-2012, 01:33 PM	#7
Hendrix-Engineering Account Suspended Drives: First 9 inch-12 bolt IRS Camaro Join Date: Jun 2009 Location: nc Posts: 1,835	Don't forget u will have to reflash the cumputer ,if u dont already have a tune this will cancel ur warranty ,im n the same boat with the wifes convertablr,I know it will help but i don't think its worth losing the waranty right now

07-04-2012, 08:34 AM	#10
2010txss Drives: 2010 camaro 2ss Join Date: May 2012 Location: Krum TX Posts: 152 View My Garage	Thanks everyone for the input. I decided to get the rear differential and I am glad I did plus I bought magnaflow 16483 cat back. Now the car sounds good and feels very alive when getting on it.

07-04-2012, 09:56 AM	#12
2010txss Drives: 2010 camaro 2ss Join Date: May 2012 Location: Krum TX Posts: 152 View My Garage	I had the shift tuned also.