New rear end in but!! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Scott@Bjorn3D · 04-03-2013, 12:45 PM

Well my new 1LE rear end has been installed in my car. Only one problem, GM does not have the calibrations yet for the normal SS TR6060 for the speedometer. Should be out in about 3 months or so. So how many miles over or under am I at 35MPH and 65MPH?

Also my tach would still be the same right, so I know if I am redlining my engine?

Scott@Bjorn3D · 04-03-2013, 02:58 PM

Quote:

Originally Posted by Scott@Bjorn3D

Well my new 1LE rear end has been installed in my car. Only one problem, GM does not have the calibrations yet for the normal SS TR6060 for the speedometer. Should be out in about 3 months or so. So how many miles over or under am I at 35MPH and 65MPH?

Also my tach would still be the same right, so I know if I am redlining my engine?

Ok figured it out with a online tool, about 5 under what the speedo says at low speeds and 8 under at when it says 65.

Chris82xx · 04-03-2013, 03:00 PM

I don't believe your trans has anything to do with what is showing up on your speedo. You changed your gears, so really the only thing you need to do is go to a tuner and have him calibrate the computer to reflect the new gears.

Scott@Bjorn3D · 04-03-2013, 03:05 PM

Quote:

Originally Posted by Chris82xx

I don't believe your trans has anything to do with what is showing up on your speedo. You changed your gears, so really the only thing you need to do is go to a tuner and have him calibrate the computer to reflect the new gears.

No the speedo has changed. Radar checked it with one of our patrol cars. The speedometer gets it info from the TCM which is in the transmission, when GM release the program for the stock SS TR6060 then it will have the gear change info in it from 3.45 to 3.91

MA2010SS · 04-03-2013, 03:23 PM

You can flash the computer via HP Tuners, EFI Live, or one of the hand held units that have the capability to modify the gear ratio to correct the speedo. Of course you have to own one of those or go to a tuner and have them flash the computer with the right gear ratio.

Scott@Bjorn3D · 04-03-2013, 03:26 PM

Quote:

Originally Posted by MA2010SS

You can flash the computer via HP Tuners, EFI Live, or one of the hand held units that have the capability to modify the gear ratio to correct the speedo. Of course you have to own one of those or go to a tuner and have them flash the computer with the right gear ratio.

That would void the warranty. I will wait for GM Calc.

MA2010SS · 04-03-2013, 06:46 PM

Did not know the dealer was updating tunes because of gear/diff swaps, interesting. your speedo will be about 6 or so mph off and you will rack up mileage quicker with the speedo being off too.

Chris82xx · 04-03-2013, 07:40 PM

Do a handheld, and before you go to the dealer, swap it back to stock.

Scott@Bjorn3D · 04-03-2013, 07:43 PM

Quote:

Originally Posted by MA2010SS

Did not know the dealer was updating tunes because of gear/diff swaps, interesting. your speedo will be about 6 or so mph off and you will rack up mileage quicker with the speedo being off too.

The tune for the GM 1LE rear end is supposed to be certified for a normal SS in 2-3 months. Since we went around and around for the last couple of days since the rear end was put in the car hopefully it will be sooner than latter.

The Stig · 04-03-2013, 07:45 PM

Quote:

Originally Posted by Chris82xx

Do a handheld, and before you go to the dealer, swap it back to stock.

They can still tell the ECM's been flashes.

Chris82xx · 04-03-2013, 07:52 PM

I'm out of ideas...lol

SSMickey · 04-03-2013, 09:23 PM

So GM is releasing a calibration for a regular SS with 3.91 gears? Wouldn't that be a normal calibration for a 1LE? Couldn't you just go to a mod friendly dealer and have it flashed with a 1LE calibration. Seems to me like you might be getting a load of

from your current dealer.

Scott@Bjorn3D · 04-04-2013, 04:46 AM

Quote:

Originally Posted by SSMickey

So GM is releasing a calibration for a regular SS with 3.91 gears? Wouldn't that be a normal calibration for a 1LE? Couldn't you just go to a mod friendly dealer and have it flashed with a 1LE calibration. Seems to me like you might be getting a load of

from your current dealer.

No this is not from the dealer, the 1LE transmission is different part than the SS transmission and the Calc's for each part has to meet EPA approval. That Calc is being tested now. Believe me it is not my dealers fault all. If you go to a normal dealer they can only load programming GM gives them and that programming is kept in a database for each VIN. Since I want to keep my drivetrain warranty that is why I will wait for the Calc. That is why also I bought the entire rear end from the dealer for a 5 year 100,000 mile warranty to not be voided.

Basically the part we bought will be up coming upgrades from GM, if you remember the 1LE announcement they said that older SS's can be upgraded to 1LE. We got approval to get the part and keep they warranty but no one new that Tach did not have the Calc yet.

I just wanted to know what would be off and that is why I posted. I have since found gear calculators on the net so I know what I go at what speeds now. None of this was posted to pick on my dealer or GM so please do not spin it like that.

And as far as calling dealer BS, well the dealer does not even want a dime from me for the work or the rear end until the Calc comes out and is installed on my car. I call that a good dealer in my book.

The Stig · 04-04-2013, 06:19 AM

Be careful how far you drive before retuning the speedo, because your odometer is off too.

04-03-2013, 12:45 PM	#1
Scott@Bjorn3D Drives: Kami, 2013 2SS LS3 Luvin Join Date: Oct 2008 Location: Eufaula, Alabama Posts: 6,427	New rear end in but!! Well my new 1LE rear end has been installed in my car. Only one problem, GM does not have the calibrations yet for the normal SS TR6060 for the speedometer. Should be out in about 3 months or so. So how many miles over or under am I at 35MPH and 65MPH? Also my tach would still be the same right, so I know if I am redlining my engine?

04-03-2013, 03:00 PM	#3
Chris82xx Make your peace with God! Drives: 2011 Camaro SS/RS M6 Convertible Join Date: Dec 2011 Location: Dirty Jersey Posts: 1,595	I don't believe your trans has anything to do with what is showing up on your speedo. You changed your gears, so really the only thing you need to do is go to a tuner and have him calibrate the computer to reflect the new gears. __________________ ECS base supercharger (NOVI 1500SL), ECS AlKY control kit, 92mm TB, ARH 1 7/8" LT's non-catted, Borla 3" exhaust, ID850 injectors, Squash fuel system, ECS Big Blower Cam, MGW short throw shifter, DSS 1000hp axles, LGW differential cover, billet caps, Tech AFX heater hoses, Pedders differential bushings, Eaton TrueTrac differential, PRC dual valve springs, Katech C5R timing chain, ATI balancer, Meilings oil pump, Pfadt Trailing Arms, Pfadt Tie Rods, Pfadt Sway Bars, Pfadt End Links, DSS Aluminum Driveshaft 811RWHP/719RWTQ UNDER MAJOR OVERHAUL!!

04-03-2013, 03:23 PM	#5
MA2010SS Drives: 2010 Camaro SS Join Date: Aug 2010 Location: Somerset MA Posts: 725 View My Garage	You can flash the computer via HP Tuners, EFI Live, or one of the hand held units that have the capability to modify the gear ratio to correct the speedo. Of course you have to own one of those or go to a tuner and have them flash the computer with the right gear ratio. __________________ 2010 Camaro SS Whipple SC, CAI Inc Intake, TSP 1 7/8" LT headers no cats, 3" magnaflow exhaust, HPT, RX Catch Can, LSR Toe Rods, LSR Trailing Arms, ALKY Control Meth, McLeod RXT Twin Disc, ZL1 fuel pump, 3.73 ZL1 Differential Kit, BTR PDS Stage 2 Cam, Tuned by SLOWHAWK Performance Bridgewater MA

04-03-2013, 06:46 PM	#7
MA2010SS Drives: 2010 Camaro SS Join Date: Aug 2010 Location: Somerset MA Posts: 725 View My Garage	Did not know the dealer was updating tunes because of gear/diff swaps, interesting. your speedo will be about 6 or so mph off and you will rack up mileage quicker with the speedo being off too. __________________ 2010 Camaro SS Whipple SC, CAI Inc Intake, TSP 1 7/8" LT headers no cats, 3" magnaflow exhaust, HPT, RX Catch Can, LSR Toe Rods, LSR Trailing Arms, ALKY Control Meth, McLeod RXT Twin Disc, ZL1 fuel pump, 3.73 ZL1 Differential Kit, BTR PDS Stage 2 Cam, Tuned by SLOWHAWK Performance Bridgewater MA

04-03-2013, 07:40 PM	#8
Chris82xx Make your peace with God! Drives: 2011 Camaro SS/RS M6 Convertible Join Date: Dec 2011 Location: Dirty Jersey Posts: 1,595	Do a handheld, and before you go to the dealer, swap it back to stock. __________________ ECS base supercharger (NOVI 1500SL), ECS AlKY control kit, 92mm TB, ARH 1 7/8" LT's non-catted, Borla 3" exhaust, ID850 injectors, Squash fuel system, ECS Big Blower Cam, MGW short throw shifter, DSS 1000hp axles, LGW differential cover, billet caps, Tech AFX heater hoses, Pedders differential bushings, Eaton TrueTrac differential, PRC dual valve springs, Katech C5R timing chain, ATI balancer, Meilings oil pump, Pfadt Trailing Arms, Pfadt Tie Rods, Pfadt Sway Bars, Pfadt End Links, DSS Aluminum Driveshaft 811RWHP/719RWTQ UNDER MAJOR OVERHAUL!!

04-03-2013, 07:52 PM	#11
Chris82xx Make your peace with God! Drives: 2011 Camaro SS/RS M6 Convertible Join Date: Dec 2011 Location: Dirty Jersey Posts: 1,595	I'm out of ideas...lol __________________ ECS base supercharger (NOVI 1500SL), ECS AlKY control kit, 92mm TB, ARH 1 7/8" LT's non-catted, Borla 3" exhaust, ID850 injectors, Squash fuel system, ECS Big Blower Cam, MGW short throw shifter, DSS 1000hp axles, LGW differential cover, billet caps, Tech AFX heater hoses, Pedders differential bushings, Eaton TrueTrac differential, PRC dual valve springs, Katech C5R timing chain, ATI balancer, Meilings oil pump, Pfadt Trailing Arms, Pfadt Tie Rods, Pfadt Sway Bars, Pfadt End Links, DSS Aluminum Driveshaft 811RWHP/719RWTQ UNDER MAJOR OVERHAUL!!

04-03-2013, 09:23 PM	#12
SSMickey Drives: 2010 IBM 2SS Join Date: Feb 2010 Location: Columbia S.C. Posts: 1,455 View My Garage	So GM is releasing a calibration for a regular SS with 3.91 gears? Wouldn't that be a normal calibration for a 1LE? Couldn't you just go to a mod friendly dealer and have it flashed with a 1LE calibration. Seems to me like you might be getting a load offrom your current dealer. __________________ 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

04-04-2013, 06:19 AM	#14
The Stig knows 2 facts about ducks Drives: ...and they're both wrong Join Date: Aug 2009 Location: The HMS Invincible Posts: 25,072 View My Garage	Be careful how far you drive before retuning the speedo, because your odometer is off too. __________________