ZL1 rear diff - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SSOOCH · 11-23-2011, 04:44 PM

All the Guys here in Utah who run their cars out at Miller Motorsports Park who have PFADT drop springs have all blown axles. All of them have upgraded to DSS axles but I won't know if that fixed the issue until next spring when they're running them hard again.

55Designs · 11-23-2011, 09:27 PM

Quote:

Originally Posted by SSOOCH

All the Guys here in Utah who run their cars out at Miller Motorsports Park who have PFADT drop springs have all blown axles. All of them have upgraded to DSS axles but I won't know if that fixed the issue until next spring when they're running them hard again.

lowering these cars and driving hard doesnt go well, parts fail and the car induces vibrations. known design issue with the current set up. I also want to see the ZL1 set up myself to see how the angles of the axles have changed with the new diff assembly and geometry

JusticePete · 11-23-2011, 09:37 PM

The MRC system does not like to be lowered. If you venture over to the CTS-V forums you'll find the lowering coils are a rather modest drop.

The biggest issue with lowering and 5th Gen axels is heat. The grease in the OEM shafts has a modest temperature at which it liquefies. When the heat builds up from laps and the grease liquefies the CV joints are not well lubricated. That is what causes the CV joint failure on a road course.

This can be addressed with a number of different lubes that have much higher temps before the lube liquefies. Companies like the DSS use this type of lube. You can take an OEM shaft off and upgrade the lube.

At this time, we have no idea what type of lube is in the ZL1 CV joints.

MileMAN402 · 02-07-2012, 09:49 PM

Any updates on the ZL1 diff/axles/DS? Price?

MileMAN402 · 02-08-2012, 06:34 AM

Quote:

Originally Posted by sadie2012

Speed74SS · 02-08-2012, 10:16 AM

Quote:

Originally Posted by JusticePete

The MRC system does not like to be lowered. If you venture over to the CTS-V forums you'll find the lowering coils are a rather modest drop.

The biggest issue with lowering and 5th Gen axels is heat. The grease in the OEM shafts has a modest temperature at which it liquefies. When the heat builds up from laps and the grease liquefies the CV joints are not well lubricated. That is what causes the CV joint failure on a road course.

This can be addressed with a number of different lubes that have much higher temps before the lube liquefies. Companies like the DSS use this type of lube. You can take an OEM shaft off and upgrade the lube.

At this time, we have no idea what type of lube is in the ZL1 CV joints.

C'mon Pete - I don't want to buy the Eibach coils....I would rather buy Pedders!! A little drop to get rid of some fender gap and the MRC is still intact - give me something to work with. I am going through Pedders withdrawals!!

Oh yeah...and I would like the rear diff out of the ZL1 also!! As my only option is an $1800 add on rear diff cooler

2SSRS@Gen5diy · 02-08-2012, 04:11 PM

Quote:

Originally Posted by MileMAN402

Any updates on the ZL1 diff/axles/DS? Price?

I have all the part # i will post later today.

MileMAN402 · 02-08-2012, 04:14 PM

Quote:

Originally Posted by 2SSRS

I have all the part # i will post later today.

Awesome! Thanks a lot

swiftkart · 02-08-2012, 04:20 PM

I'm thinking about going this route over a 9", can
t wait to hear what the total cost for everything would be, I'm sure it will be a lot less than the 9" setup and handle a lot of power as well.

Driveshaftshop · 02-08-2012, 04:58 PM

The 12 bolt Hammerheads will also be another option due in around April. with a Eaton True trac and 1000hp axles its going to be about 5200.00

POWERFREAK · 02-08-2012, 05:08 PM

Quote:

Originally Posted by swiftkart

I'm thinking about going this route over a 9", can
t wait to hear what the total cost for everything would be, I'm sure it will be a lot less than the 9" setup and handle a lot of power as well.

might not be that much of a difference since you'll probably need to buy axles, drive shaft, hubs etc...not to mention your choice of gears and even more strength.

2SSRS@Gen5diy · 02-08-2012, 05:47 PM

Rear diff part # 20931133 List $ 2535.71
L Shaft # 20931157 List $ 507.89
R Shaft # 20931158 List $ 581.58

DandD · 02-08-2012, 05:52 PM

Ok, so now the question is, will the ZL-1 diff be a direct bolt in for say a 2010 like I have. Also and maybe Frank can answer this one, will the 1400 HP axles and 1pc driveshaft from the DSS for the 2010 diff work with the ZL-1 diff? And thank you for posting up that info 2SSRS.

BigMatt · 02-08-2012, 05:56 PM

I wonder how much power the zl1 diff can handle?!

11-23-2011, 04:44 PM	#15
SSOOCH Camaro SL,UTs Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006 Location: South Jordan, UT Posts: 7,358 View My Garage	All the Guys here in Utah who run their cars out at Miller Motorsports Park who have PFADT drop springs have all blown axles. All of them have upgraded to DSS axles but I won't know if that fixed the issue until next spring when they're running them hard again. __________________

02-07-2012, 09:49 PM	#18
MileMAN402 RIP JoePa Drives: 2010 2SS/RS & 2001 Audi S4 Join Date: Apr 2010 Location: Central PA Posts: 644 View My Garage	Any updates on the ZL1 diff/axles/DS? Price? __________________

02-08-2012, 05:52 PM	#27
DandD Drives: 2010 2SS and 2011 LS Join Date: Aug 2011 Location: Western burbs of the Motor City Posts: 628 View My Garage	Ok, so now the question is, will the ZL-1 diff be a direct bolt in for say a 2010 like I have. Also and maybe Frank can answer this one, will the 1400 HP axles and 1pc driveshaft from the DSS for the 2010 diff work with the ZL-1 diff? And thank you for posting up that info 2SSRS. __________________ Around here we like baseball, hot dogs, apple pie, and Chevrolet

02-08-2012, 05:56 PM	#28
BigMatt 2010 Camaro 2 SS/RS M6 Drives: 2010 Camaro SS/RS Join Date: May 2009 Location: Clayton Delaware Posts: 1,218 View My Garage	I wonder how much power the zl1 diff can handle?! __________________ Forged LS3, FED M311 heads, CAI Inc, ARH 1 7/8, Corsa Xtreme, Taylor Wires, MGW Shifter, Street slayer twin carbon clutch, Tick braided clutch line & speed bleeder, ZL1 Diff Swap, BMR Split drop, Sway Bars, Trailing Arms, Toe Rods, Pro bushing kit, Carslyle racing 15in conversion, Whipple, LPE dual fuel pumps, Rx catch can, Id1300x, Alky Control

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11-23-2011, 09:37 PM	#17
JusticePete Drives: Camaro Justice Join Date: Jun 2007 Location: Virginia Posts: 20,174	The MRC system does not like to be lowered. If you venture over to the CTS-V forums you'll find the lowering coils are a rather modest drop. The biggest issue with lowering and 5th Gen axels is heat. The grease in the OEM shafts has a modest temperature at which it liquefies. When the heat builds up from laps and the grease liquefies the CV joints are not well lubricated. That is what causes the CV joint failure on a road course. This can be addressed with a number of different lubes that have much higher temps before the lube liquefies. Companies like the DSS use this type of lube. You can take an OEM shaft off and upgrade the lube. At this time, we have no idea what type of lube is in the ZL1 CV joints.

02-08-2012, 04:20 PM	#23
swiftkart Drives: 2010 SS/RS LS3 M6 Join Date: Apr 2011 Location: Kansas Posts: 693	I'm thinking about going this route over a 9", can t wait to hear what the total cost for everything would be, I'm sure it will be a lot less than the 9" setup and handle a lot of power as well.

02-08-2012, 04:58 PM	#24
Driveshaftshop Drives: own more cars than i can list Join Date: Nov 2010 Location: Charlotte NC Posts: 1,124	The 12 bolt Hammerheads will also be another option due in around April. with a Eaton True trac and 1000hp axles its going to be about 5200.00

02-08-2012, 05:47 PM	#26
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	Rear diff part # 20931133 List $ 2535.71 L Shaft # 20931157 List $ 507.89 R Shaft # 20931158 List $ 581.58