V6-to-V8 Differential Swap - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Amenti · 09-04-2011, 10:26 PM

So, after two days and almost three nights of bungling around under my car with a friend in my driveway, I've finally completed conversion from my 3.27 Ratio V6 Automatic Open Differential to the 3.45 Ratio V8 Manual LSD.

I just barely finished throwing it all together; so, I've only driven it around gingerly to distribute the gear oil in the differential. It sounds like everything went well, and there's no strange creaks or groans coming from the IRS. There was a little bit of what I think is exhaust rattle; but, I think I know where that's coming from. I had a clamp a little close to the rear subframe.

So, I'll install the tune to correct the speedo tonight, and do some hard launches tomorrow to see how she performs.

KMPrenger · 09-04-2011, 10:27 PM

Great! Hope there are no issues and looking forward to your impressions.

Spicoli · 09-04-2011, 11:34 PM

I'm interested in doing the same mod. What did you have to change? Diff., axles, driveshaft?

Thanks!!!

GretchenGotGrowl · 09-05-2011, 09:28 AM

Quote:

Originally Posted by Amenti

So, after two days and almost three nights of bungling around under my car with a friend in my driveway, I've finally completed conversion from my 3.27 Ratio V6 Automatic Open Differential to the 3.45 Ratio V8 Manual LSD.

I just barely finished throwing it all together; so, I've only driven it around gingerly to distribute the gear oil in the differential. It sounds like everything went well, and there's no strange creaks or groans coming from the IRS. There was a little bit of what I think is exhaust rattle; but, I think I know where that's coming from. I had a clamp a little close to the rear subframe.

So, I'll install the tune to correct the speedo tonight, and do some hard launches tomorrow to see how she performs.

Great news man!

PoorMansCamaro · 09-05-2011, 09:48 AM

OOLIE · 09-05-2011, 10:16 AM

Curious about this. What is the approximate cost of this swap?

its a syn · 09-05-2011, 10:19 AM

what to do the same,will be back agian to see some of the answers to the questions

SC2150 · 09-05-2011, 12:38 PM

We have a complete rear drivetrain to do the swap in house waiting for the next TT build if someone wants it done.

Ventmaster · 09-05-2011, 01:02 PM

Very impressive "driveway" job! Nice work.

I was happy completing subframe bush inserts, way to bring me down a notch!

Off topic but big improvement with those light Nurburgring wheels?

Apex Motorsports · 09-05-2011, 03:36 PM

Ir0nM4n · 09-05-2011, 04:43 PM

Quote:

Originally Posted by Apex Chase

Interesting about the MAF sensor, does that also include the V6 community? I am thinking Vararam would have information about that?

Amenti · 09-05-2011, 05:09 PM

So, I've been out driving in city traffic for a while today. I was able to give it a few good launches, and it feels very peppy. The butt dyno tells me there's a slight increase in realized torque with that new differential. The launches are also very smooth. My exhaust rattle went away after repositioning the clamp I had too close to the subframe.

On a side note, I used to have a strange crunching sound shifting from first to second. I believe there's a TSB regarding the problem that states there's a washer missing from the axleshaft near the wheel bearing hub. The SS axles I used had those washers; so, that annoying little crunch is gone now!

@Spicoli: In order to do the swap, you need the differential, some SS axles, new wheel bearing hubs to fit the beefier axles, and possibly an SS driveshaft. The only difference between the SS driveshaft and the V6 driveshaft appears to be the coupler bolt pattern; so, in theory, if you had a V8 coupler to put on your V6 driveshaft, you'd be alright. Definitely check on that, though.

@Ventmaster: The Nurburgring wheels were a great investment. It made the car feel lighter on its feet due to the 7+ lbs. reduction per wheel. Also, going to a 1-inch wider front wheel made the car feel a little less squirrely on uneven pavement. Your results may vary!

@OOLIE: Let's see...I got a deal on a brand new 3.45 SS rear diff on Ebay for 600+95 shipping, new wheel bearing hubs are 140+ each, got a new driveshaft on Ebay for 290 and free shipping, i got the axles slightly used from a C5 member for 150 for the set (I think). Plus, I paid 600 for my Trifecta tune (13hp at WOT is nice) for the corrected speedo. Self-installed; so, a total of: $2020.00.

It seems a little steep; but, I'd say it's worth it to get your LSD, some beefier drivetrain components and access to all of the SS aftermarket gears.

Apex Motorsports · 09-05-2011, 07:05 PM

Quote:

Originally Posted by MINI HLK

Interesting about the MAF sensor, does that also include the V6 community? I am thinking Vararam would have information about that?

You guys are not effected. It is just an SS problem.

Spicoli · 09-05-2011, 07:28 PM

@Amenti Thanks for the response. I guess I'm on the search for a donor car.

09-04-2011, 10:26 PM	#1
Amenti Drives: 2017 1SS Convertible Join Date: Feb 2010 Location: San Antonio, TX Posts: 583	V6-to-V8 Differential Swap So, after two days and almost three nights of bungling around under my car with a friend in my driveway, I've finally completed conversion from my 3.27 Ratio V6 Automatic Open Differential to the 3.45 Ratio V8 Manual LSD. I just barely finished throwing it all together; so, I've only driven it around gingerly to distribute the gear oil in the differential. It sounds like everything went well, and there's no strange creaks or groans coming from the IRS. There was a little bit of what I think is exhaust rattle; but, I think I know where that's coming from. I had a clamp a little close to the rear subframe. So, I'll install the tune to correct the speedo tonight, and do some hard launches tomorrow to see how she performs. __________________ Performance Mods: Injen Powerflow CAI, Doug Thorley Cat-Back Exhaust, Doug Thorley Shorty Headers, Trifecta Tune, TSW Nurburgring Wheels 20x9, 3.45 Ratio LSD Swap, VMax Black Ice-Olator Appearance Mods: RiderGraphix LS7 Front Fascia Blackout Vinyl, Gill Insert Vinyl, Rear Deck Lid Vinyl (Gloss Black), Gary's Customs Painted Bowties Coming Soon: BMR Trailing Arms

09-04-2011, 10:27 PM	#2
KMPrenger Drives: 16 Camaro SS, 15 Colorado Join Date: May 2009 Location: Jefferson City, Missouri Posts: 13,943	Great! Hope there are no issues and looking forward to your impressions. __________________ 2016 Camaro 1SS - 8-speed - NPP - Black bowties 2010 Camaro 1LT V6 (Sold. I will miss her!)

09-04-2011, 11:34 PM	#3
Spicoli Drives: 2010 Camaro 1LT/RS Join Date: Mar 2011 Location: SW Michigan Posts: 99 View My Garage	I'm interested in doing the same mod. What did you have to change? Diff., axles, driveshaft? Thanks!!! __________________ All I need are some tasty waves and a cool buzz and I'm fine (and of course a hot Camaro doesn't hurt).

09-05-2011, 09:48 AM	#5
PoorMansCamaro Drives: Really Slow Join Date: Apr 2010 Location: PA Posts: 56,957	__________________

09-05-2011, 10:16 AM	#6
OOLIE Drives: 2011 LS Join Date: Oct 2010 Location: FL Posts: 1,643	Curious about this. What is the approximate cost of this swap? __________________

09-05-2011, 10:19 AM	#7
its a syn B.O.D. 02/16/10 Drives: 2010 SGM Sp. Edition 2017 RS Conver Join Date: Jun 2010 Location: Albia,Iowa Posts: 3,959 View My Garage	what to do the same,will be back agian to see some of the answers to the questions __________________

09-05-2011, 12:38 PM	#8
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	We have a complete rear drivetrain to do the swap in house waiting for the next TT build if someone wants it done.

09-05-2011, 01:02 PM	#9
Ventmaster Drives: 2017 1SS 6spd Join Date: Jan 2011 Location: Utah Posts: 2,869	Very impressive "driveway" job! Nice work. I was happy completing subframe bush inserts, way to bring me down a notch! Off topic but big improvement with those light Nurburgring wheels?

09-05-2011, 03:36 PM	#10
Apex Motorsports Drives: 2000 Camaro SS Join Date: Feb 2010 Location: Louisville, Ky. Posts: 25,179

09-05-2011, 05:09 PM	#12
Amenti Drives: 2017 1SS Convertible Join Date: Feb 2010 Location: San Antonio, TX Posts: 583	So, I've been out driving in city traffic for a while today. I was able to give it a few good launches, and it feels very peppy. The butt dyno tells me there's a slight increase in realized torque with that new differential. The launches are also very smooth. My exhaust rattle went away after repositioning the clamp I had too close to the subframe. On a side note, I used to have a strange crunching sound shifting from first to second. I believe there's a TSB regarding the problem that states there's a washer missing from the axleshaft near the wheel bearing hub. The SS axles I used had those washers; so, that annoying little crunch is gone now! @Spicoli: In order to do the swap, you need the differential, some SS axles, new wheel bearing hubs to fit the beefier axles, and possibly an SS driveshaft. The only difference between the SS driveshaft and the V6 driveshaft appears to be the coupler bolt pattern; so, in theory, if you had a V8 coupler to put on your V6 driveshaft, you'd be alright. Definitely check on that, though. @Ventmaster: The Nurburgring wheels were a great investment. It made the car feel lighter on its feet due to the 7+ lbs. reduction per wheel. Also, going to a 1-inch wider front wheel made the car feel a little less squirrely on uneven pavement. Your results may vary! @OOLIE: Let's see...I got a deal on a brand new 3.45 SS rear diff on Ebay for 600+95 shipping, new wheel bearing hubs are 140+ each, got a new driveshaft on Ebay for 290 and free shipping, i got the axles slightly used from a C5 member for 150 for the set (I think). Plus, I paid 600 for my Trifecta tune (13hp at WOT is nice) for the corrected speedo. Self-installed; so, a total of: $2020.00. It seems a little steep; but, I'd say it's worth it to get your LSD, some beefier drivetrain components and access to all of the SS aftermarket gears. __________________ Performance Mods: Injen Powerflow CAI, Doug Thorley Cat-Back Exhaust, Doug Thorley Shorty Headers, Trifecta Tune, TSW Nurburgring Wheels 20x9, 3.45 Ratio LSD Swap, VMax Black Ice-Olator Appearance Mods: RiderGraphix LS7 Front Fascia Blackout Vinyl, Gill Insert Vinyl, Rear Deck Lid Vinyl (Gloss Black), Gary's Customs Painted Bowties Coming Soon: BMR Trailing Arms

09-05-2011, 07:28 PM	#14
Spicoli Drives: 2010 Camaro 1LT/RS Join Date: Mar 2011 Location: SW Michigan Posts: 99 View My Garage	@Amenti Thanks for the response. I guess I'm on the search for a donor car. __________________ All I need are some tasty waves and a cool buzz and I'm fine (and of course a hot Camaro doesn't hurt).

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