Rear end question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Jrad · 10-17-2013, 12:18 AM

Just recently found and joined this forum. Have yet to post picks. I bought a 1LE 1SS summit white this spring. A once in a life time purchase for me. I love the car but had the rear end go out at 2000 miles. The dealership replaced the differential. But i have 2 questions for you more knowledgeable guys. The car's gearing feels higher afterwards(could be in my head since I am really babying it now). I looked up the replacement part online and it just says rear differential but does not say if that includes ring and pinion gears? Hoping they didn't put stock SS gears in. Called the dealership had to leave a message asking what parts. They said differential. Also what is the breakin period for the new rear end? The dealership said 3000 miles. Generic breakin for car in manual. Also mentioned that maybe i didn't break it in right or rear end would not have failed. I admit i got on it a little bit once in awhile(after 1500 miles of break in) but told him it is the same rear end as the ZL1 and should not have failed! Thanks for your help!

SteveV · 10-17-2013, 07:03 AM

I seem to recall it is NOT the same diff as the ZL1. It uses the beefier half shafts from the ZL1, but it is the same diff as a normal SS. It just has a different ratio than a normal SS.

racerx1214 · 10-17-2013, 08:43 AM

3k miles?

I've always just heat cycled the gears (easy drive, let cool, easy drive, let cool) then proceeded to beat the F out of the car. Never once had a problem. Drive your car man, whats the point of buying it to drive it like a grandma.

willc1980 · 10-17-2013, 09:57 AM

ZL1 has a 3.73 rear gear i believe, the 1LE is a 3.91, plus the ZL1 has a rear diff cooler

SSMickey · 10-17-2013, 10:17 AM

Can you post the part number they installed? That will tell us if you have the correct part. I'm guessing you probably do as the parts department should have entered your cars VIN prior to searching for parts.

The SS/1LE diff is NOT the same as the ZL1 diff. The ZL1 diff is physically larger and will not bolt in without a lot of work.

strych9 · 10-17-2013, 10:54 AM

Quote:

Originally Posted by SteveV

I seem to recall it is NOT the same diff as the ZL1. It uses the beefier half shafts from the ZL1, but it is the same diff as a normal SS. It just has a different ratio than a normal SS.

This is correct.

Quote:

Originally Posted by willc1980

ZL1 has a 3.73 rear gear i believe, the 1LE is a 3.91, plus the ZL1 has a rear diff cooler

The 1LE has a 218mm ring gear, and the ZL1 has a beefier 250mm ring gear.

Also, if the speedo is accurate, I guarantee that you have the correct ratio. Otherwise they would have had to reprogram the ECM for the different ratio. They would not have done that without noting it on the invoice (tech would want to get paid for the operation).

White_SS/RS · 10-17-2013, 11:09 AM

Quote:

Originally Posted by racerx1214

3k miles?

I've always just heat cycled the gears (easy drive, let cool, easy drive, let cool) then proceeded to beat the F out of the car. Never once had a problem. Drive your car man, whats the point of buying it to drive it like a grandma.

I agree, do some daily driving for a few hundred miles and then game on. Change the diff oil after 500 miles and you should be good to go.

gajagfan · 10-17-2013, 01:38 PM

Just a thought, and I have not been able to drive our car for over a week due to knee surgery, but as I remember, 80 MPH is about 2K RPM. If that is still the same, you have the same rear end gears.

SteveV · 10-17-2013, 02:51 PM

Quote:

Originally Posted by gajagfan

Just a thought, and I have not been able to drive our car for over a week due to knee surgery, but as I remember, 80 MPH is about 2K RPM. If that is still the same, you have the same rear end gears.

On my 1LE, 2000 RPM in 6th gear is 85mph...

Jrad · 10-18-2013, 12:31 AM

Thanks for the info. I am not currently at home so do not have the part number. I will test the car tomorrow on the expressway to match the rpm's in 6th gear. Yeah I bought this car to have fun and I will. It still has 2.5 years under warranty!

gajagfan · 10-18-2013, 08:35 AM

Quote:

Originally Posted by SteveV

On my 1LE, 2000 RPM in 6th gear is 85mph...

That is probably be right. I had not drove mine for over a week until last night, and then this morning. I did not take the time to notice. Thanks for giving him the right information.

SteveV · 10-18-2013, 08:59 AM

No problem. My commute on I-40 every morning has me doing 85mph to keep up with traffic. So, I usually shift to 6th to try and save a little fuel.

So, I see that speed and RPM every morning... :-)

SilverSS1LE · 10-21-2013, 08:37 PM

does anyone have any insight on how much power the 1le half shafts are rated at?

10-17-2013, 12:18 AM	#1
Jrad Drives: 2013 SS LE Join Date: Sep 2013 Location: Michigan Posts: 9	Rear end question Just recently found and joined this forum. Have yet to post picks. I bought a 1LE 1SS summit white this spring. A once in a life time purchase for me. I love the car but had the rear end go out at 2000 miles. The dealership replaced the differential. But i have 2 questions for you more knowledgeable guys. The car's gearing feels higher afterwards(could be in my head since I am really babying it now). I looked up the replacement part online and it just says rear differential but does not say if that includes ring and pinion gears? Hoping they didn't put stock SS gears in. Called the dealership had to leave a message asking what parts. They said differential. Also what is the breakin period for the new rear end? The dealership said 3000 miles. Generic breakin for car in manual. Also mentioned that maybe i didn't break it in right or rear end would not have failed. I admit i got on it a little bit once in awhile(after 1500 miles of break in) but told him it is the same rear end as the ZL1 and should not have failed! Thanks for your help!

10-17-2013, 07:03 AM	#2
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	I seem to recall it is NOT the same diff as the ZL1. It uses the beefier half shafts from the ZL1, but it is the same diff as a normal SS. It just has a different ratio than a normal SS. __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

10-17-2013, 10:17 AM	#5
SSMickey Drives: 2010 IBM 2SS Join Date: Feb 2010 Location: Columbia S.C. Posts: 1,455 View My Garage	Can you post the part number they installed? That will tell us if you have the correct part. I'm guessing you probably do as the parts department should have entered your cars VIN prior to searching for parts. The SS/1LE diff is NOT the same as the ZL1 diff. The ZL1 diff is physically larger and will not bolt in without a lot of work. __________________ ProCharger P1X, Vengeance Racing Kaotic Cam, ARH Headers and Exhaust with Borla ATAK mufflers, MGW Shifter, MTI Drop Springs, Forgeline RB3C Wheels, 3.91 gears, Night Owl LED Control System

10-18-2013, 08:59 AM	#12
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	No problem. My commute on I-40 every morning has me doing 85mph to keep up with traffic. So, I usually shift to 6th to try and save a little fuel. So, I see that speed and RPM every morning... :-) __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

10-17-2013, 08:43 AM	#3
racerx1214 Drives: 2018 SS 1LE Join Date: Mar 2013 Location: Akron, Ohio Posts: 209	3k miles? I've always just heat cycled the gears (easy drive, let cool, easy drive, let cool) then proceeded to beat the F out of the car. Never once had a problem. Drive your car man, whats the point of buying it to drive it like a grandma.

10-17-2013, 09:57 AM	#4
willc1980 Drives: 2013 Camaro SS 1LE Join Date: Jul 2013 Location: Wyandotte, MI Posts: 157	ZL1 has a 3.73 rear gear i believe, the 1LE is a 3.91, plus the ZL1 has a rear diff cooler

10-17-2013, 01:38 PM	#8
gajagfan Drives: 2013 1SS 1LE Black - Std Exhaust Join Date: Mar 2013 Location: Brunswick, GA Posts: 3,622 View My Garage	Just a thought, and I have not been able to drive our car for over a week due to knee surgery, but as I remember, 80 MPH is about 2K RPM. If that is still the same, you have the same rear end gears.

10-18-2013, 12:31 AM	#10
Jrad Drives: 2013 SS LE Join Date: Sep 2013 Location: Michigan Posts: 9	Thanks for the info. I am not currently at home so do not have the part number. I will test the car tomorrow on the expressway to match the rpm's in 6th gear. Yeah I bought this car to have fun and I will. It still has 2.5 years under warranty!

10-21-2013, 08:37 PM	#13
SilverSS1LE Drives: 2017 Summit White 2SS A8 Join Date: Oct 2013 Location: Houston Posts: 312	does anyone have any insight on how much power the 1le half shafts are rated at?