Differential strength/weekness & upgrades - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

chevy454 · 09-24-2009, 10:52 AM

Our '10 is getting an LS7 with some minor upgrades, and I'm wondering if there's any chance of the rear diff living with anything other than a street tire?

IPS Brandon · 09-24-2009, 11:28 AM

It is still alive in our 650 wheel car that we have drag radials on. I fear though the clutch packs will be worn out soon, car runs solid.

Also unfortunately there are minimal options to this point for upgrades. RPM does rebuild the differentials with upgraded clutch packs which is good, but not sure on case strength just yet. We do know how ever that the drive shaft and axles will not live. The three bolts that hold the diff to the drive shaft are weak and will break with a good tire, even on a BPU car.

We are going to offer a chromoly shaft, and aluminum shaft soon. There are 1000hp axles already available.

-Brandon

chevy454 · 09-24-2009, 02:19 PM

Quote:

Originally Posted by IPS Brandon

It is still alive in our 650 wheel car that we have drag radials on. I fear though the clutch packs will be worn out soon, car runs solid.

Also unfortunately there are minimal options to this point for upgrades. RPM does rebuild the differentials with upgraded clutch packs which is good, but not sure on case strength just yet. We do know how ever that the drive shaft and axles will not live. The three bolts that hold the diff to the drive shaft are weak and will break with a good tire, even on a BPU car.

We are going to offer a chromoly shaft, and aluminum shaft soon. There are 1000hp axles already available.

-Brandon

Thanks for the info...our car is in Chi-town getting the 427, so I can't run out and look at it, but I'm just trying to think ahead. Are the diff to d-shaft bolts a simple replacement affair, or is it gonna take something special? Any idea on prices on the shaft & axles?

jamesc1123 · 09-25-2009, 01:54 PM

Axles are already posted, price is $1850. Carbon Fiber driveshafts can run from $1400-$2000.

PoleCat2SSRS2010 · 09-25-2009, 05:27 PM

I spoke with Brandon back on Wednesday and the drive shaft will be a swap but there is a required pinion flange change that is not for the faint of heart due to certain procedures that I think are required for a correct installation. He said he would check into the installation requirements. The flange he described will be a major upgrade in dependability and durability. So far it sounds like the right solution. I am going to stick with the chome moly b/c of past good results. I would prefer to install the axles the same time as the drive shaft b/c the I think the procedure calls for preload and torque measurements of the pinion and carrier but I am waiting on confirmation of that. I would suspect that this is to make sure that the load on the pinion bearings are correct so that it won't go on an early demise.

speedster · 09-25-2009, 05:48 PM

Multiple companies are working on solutions for the Camaro rearend upgrade. Just too early and it takes time. If anyone gets updates (myself included) please post them here. We do have a custom Ford 9" on the drawing table, but would much rather have the aftermarket come up with an affordable one for everyone to purchase.

PoleCat2SSRS2010 · 09-25-2009, 06:43 PM

I did contact Winters Performance out of interest and they have a Corvette style differential that is IRS and they have a Porsche style CV bell option for the sides to work. The real trick is getting it setup with brackets to fit in the car. They leave that to the owner/installer. I don't know about the size of it though since the quick change area of the unit requires some additional space, 14 inches from the centerline of the axle to the back for clearance. This thing is a brute from their specs. Yes it is a quick change rear end gear ratio set up, drive on 3.49 to the track, take 5 minutes and have 4.12. The price tag on it might scare off a few but when you consider the cost of a bullet proof 9" set up, it will be about the same.

speedster · 09-25-2009, 08:14 PM

Quote:

Originally Posted by PoleCat2SSRS2010

I did contact Winters Performance out of interest and they have a Corvette style differential that is IRS and they have a Porsche style CV bell option for the sides to work. The real trick is getting it setup with brackets to fit in the car. They leave that to the owner/installer. I don't know about the size of it though since the quick change area of the unit requires some additional space, 14 inches from the centerline of the axle to the back for clearance. This thing is a brute from their specs. Yes it is a quick change rear end gear ratio set up, drive on 3.49 to the track, take 5 minutes and have 4.12. The price tag on it might scare off a few but when you consider the cost of a bullet proof 9" set up, it will be about the same.

Thanks for the info on the Winters. If it wasn't high HP and drag slicks/radials it would be a good option.

For those interested the IRS center runs around $2,800 at a place like RMB Racing.

PoleCat2SSRS2010 · 09-27-2009, 10:28 AM

Quote:

Originally Posted by speedster

Multiple companies are working on solutions for the Camaro rearend upgrade. Just too early and it takes time. If anyone gets updates (myself included) please post them here. We do have a custom Ford 9" on the drawing table, but would much rather have the aftermarket come up with an affordable one for everyone to purchase.

Are you planning on keeping the IRS as part of the design?
I know that there are a ton of parts and gear ratios for this. The only trick is getting the mounting brackets and the CV axle set up to work. A 9" with a Strange case and a Daytona pinion bearing support would be the proven ticket to allow for some REAL serious power.

speedster · 09-28-2009, 11:03 PM

Quote:

Originally Posted by PoleCat2SSRS2010

Are you planning on keeping the IRS as part of the design?
I know that there are a ton of parts and gear ratios for this. The only trick is getting the mounting brackets and the CV axle set up to work. A 9" with a Strange case and a Daytona pinion bearing support would be the proven ticket to allow for some REAL serious power.

Yes, want to keep it an IRS on the Camaro. Like I stated, there is one on the drawing boards with mounts, half shafts, etc; but a one-off is not the most cost effective. If no one else builds one in the next 2-3 months, this one will get the nod and withstand 1500 HP/TQ. Just have to see what the aftermarket does.

RamAir02 · 09-29-2009, 01:59 PM

Quote:

Originally Posted by IPS Brandon

It is still alive in our 650 wheel car that we have drag radials on. I fear though the clutch packs will be worn out soon, car runs solid.

Also unfortunately there are minimal options to this point for upgrades. RPM does rebuild the differentials with upgraded clutch packs which is good, but not sure on case strength just yet. We do know how ever that the drive shaft and axles will not live. The three bolts that hold the diff to the drive shaft are weak and will break with a good tire, even on a BPU car.

We are going to offer a chromoly shaft, and aluminum shaft soon. There are 1000hp axles already available.

-Brandon

If you plan on sticking with the stock diff, there are options already available. Here's a link to Brandon's thread about it. http://www.camaro5.com/forums/showthread.php?p=929127

speedster · 09-29-2009, 02:03 PM

Quote:

Originally Posted by RamAir02

If you plan on sticking with the stock diff, there are options already available. Here's a link to Brandon's thread about it. http://www.camaro5.com/forums/showthread.php?p=929127

This is true. Have been in contact with Brandon for a while. The centersection is the problem right now. The aftermarket will get parts out there in time...

chevy454 · 10-12-2009, 12:23 PM

Assuming we can get a set of the good axles, will the diff itself live behind 530fwhp/560fwhp and a 6L80+converter?

09-24-2009, 10:52 AM	#1
chevy454 Drives: '69 Yenko Camaro - 11.73 @ 118 Join Date: Aug 2009 Location: Missouri Posts: 178 View My Garage	Differential strength/weekness & upgrades Our '10 is getting an LS7 with some minor upgrades, and I'm wondering if there's any chance of the rear diff living with anything other than a street tire?

09-25-2009, 05:27 PM	#5
PoleCat2SSRS2010 R6P Marketing Lab Rat Drives: sometimes Join Date: Feb 2009 Location: Texas Posts: 339	I spoke with Brandon back on Wednesday and the drive shaft will be a swap but there is a required pinion flange change that is not for the faint of heart due to certain procedures that I think are required for a correct installation. He said he would check into the installation requirements. The flange he described will be a major upgrade in dependability and durability. So far it sounds like the right solution. I am going to stick with the chome moly b/c of past good results. I would prefer to install the axles the same time as the drive shaft b/c the I think the procedure calls for preload and torque measurements of the pinion and carrier but I am waiting on confirmation of that. I would suspect that this is to make sure that the load on the pinion bearings are correct so that it won't go on an early demise. __________________

09-25-2009, 05:48 PM	#6
speedster SST... Drives: SST Camaro 2010 Join Date: Oct 2008 Location: East Coast of Florida Posts: 5,927 View My Garage	Multiple companies are working on solutions for the Camaro rearend upgrade. Just too early and it takes time. If anyone gets updates (myself included) please post them here. We do have a custom Ford 9" on the drawing table, but would much rather have the aftermarket come up with an affordable one for everyone to purchase. __________________

09-25-2009, 06:43 PM	#7
PoleCat2SSRS2010 R6P Marketing Lab Rat Drives: sometimes Join Date: Feb 2009 Location: Texas Posts: 339	I did contact Winters Performance out of interest and they have a Corvette style differential that is IRS and they have a Porsche style CV bell option for the sides to work. The real trick is getting it setup with brackets to fit in the car. They leave that to the owner/installer. I don't know about the size of it though since the quick change area of the unit requires some additional space, 14 inches from the centerline of the axle to the back for clearance. This thing is a brute from their specs. Yes it is a quick change rear end gear ratio set up, drive on 3.49 to the track, take 5 minutes and have 4.12. The price tag on it might scare off a few but when you consider the cost of a bullet proof 9" set up, it will be about the same. __________________

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09-24-2009, 11:28 AM	#2
IPS Brandon Drives: 2010 Camaro SS black Join Date: Aug 2009 Location: Columbus Ohio Posts: 907	It is still alive in our 650 wheel car that we have drag radials on. I fear though the clutch packs will be worn out soon, car runs solid. Also unfortunately there are minimal options to this point for upgrades. RPM does rebuild the differentials with upgraded clutch packs which is good, but not sure on case strength just yet. We do know how ever that the drive shaft and axles will not live. The three bolts that hold the diff to the drive shaft are weak and will break with a good tire, even on a BPU car. We are going to offer a chromoly shaft, and aluminum shaft soon. There are 1000hp axles already available. -Brandon

09-25-2009, 01:54 PM	#4
jamesc1123 Drives: CGM 2SS RS w/ white stripes Join Date: Jul 2008 Location: Clarksville, TN Posts: 183 View My Garage	Axles are already posted, price is $1850. Carbon Fiber driveshafts can run from $1400-$2000.

10-12-2009, 12:23 PM	#13
chevy454 Drives: '69 Yenko Camaro - 11.73 @ 118 Join Date: Aug 2009 Location: Missouri Posts: 178 View My Garage	Assuming we can get a set of the good axles, will the diff itself live behind 530fwhp/560fwhp and a 6L80+converter?