[brandon.sullivan1742]

Thank you, just sucks that I have to come to terms with it. I just wanted it as a burnout car/slide/autocross. I bought it very cheap and it's a 1 owner coupe rwd. I will most likely do a tune, dp, inlet tube, and a fluid damper. Call it a day.

 

[Lifespeed]

This is why I've been fortunate to have LSD and eLSD in my Cadillacs, I specifically looked for it at the time of purchase. It cost more to buy the cars with that trim level.

Intuitively it makes sense stability control integrates configuration knowledge of open/LSD, but I've neither heard the specifics nor the tuning configuration possibilities, if any. Probably none for SC.

 

[dbphelps]

Thank you, just sucks that I have to come to terms with it. I just wanted it as a burnout car/slide/autocross. I bought it very cheap and it's a 1 owner coupe rwd. I will most likely do a tune, dp, inlet tube, and a fluid damper. Call it a day.

Skip the Fluidamper... Not needed and they need to be rebuilt after a number of years/miles. The stock damper is fine for these engines.

Also, you can't do burnouts in these vehicles... The ECM program (notice I said program, not tune) is written in such a way that it prevents excessive loading of the driveline, ie, slippage and torque-spikes. It cannot be "tuned out" and it is done as these are not meant to be abused like that. Basically they are the epitomy of the "engineered to maximize durability of minimally built parts" mantra, which also ends up equating to "good fuel efficiency" as well, which is the actual excuse they use.

 

[Lifespeed]

Also, you can't do burnouts in these vehicles...

That's a little harsh, SC/TC can be turned "off" which turns down most of the nannies. A 2.0 ATS while probably not an ideal drift car (especially without LSD), can be a modest performer. Again, if the OP had delusions of grandeur a higher-option car was called for.

While I'm not much of a tire smoker, I've spun the wheels and slid my 2009 CTS LLT and 2014 CTS VSport LF3. They're proper RWD sedans with LSD, although the 300HP LLT is a little weak for tire-smoking in a 3,900lb car. And if you drive like a normal person with TC on, there is little wheelspin even in the VSport.

 

[dbphelps]

That's a little harsh, SC/TC can be turned "off" which turns down most of the nannies. A 2.0 ATS while probably not an ideal drift car (especially without LSD), can be a modest performer. Again, if the OP had delusions of grandeur a higher-option car was called for.

While I'm not much of a tire smoker, I've spun the wheels and slid my 2009 CTS LLT and 2014 CTS VSport LF3. They're proper RWD sedans with LSD, although the 300HP LLT is a little weak for tire-smoking in a 3,900lb car. And if you drive like a normal person with TC on, there is little wheelspin even in the VSport.

Honestly, with all the nannies turned off it really won't... I mean I am sure you can do a brake stand and a "one-wheel peel" and have a single wheel do a burnout with everything disabled, but that is it... So, I was pretty much accurate. A "burnout" requires both wheels to spin... With a computer controlled tractions system and an "open-diff", that is just not possible. And, even if there is a
"loophole" to allow the system to modulate the brakes to get both wheels spinning in tandem with an open-diff, it would most certainly generate just as much heat in the brakes as the tires and wouldn't be good for anything. That was kinda my point.

 

[hoser450]

Honestly, with all the nannies turned off it really won't... I mean I am sure you can do a brake stand and a "one-wheel peel" and have a single wheel do a burnout with everything disabled, but that is it... So, I was pretty much accurate. A "burnout" requires both wheels to spin... With a computer controlled tractions system and an "open-diff", that is just not possible. And, even if there is a
"loophole" to allow the system to modulate the brakes to get both wheels spinning in tandem with an open-diff, it would most certainly generate just as much heat in the brakes as the tires and wouldn't be good for anything. That was kinda my point.

Some of these cars came with a larger diff with an LSD in them. They will do burnouts and slide all day long. There is no intervention by any computer when TC and Stabilitrak are turned off. They are off and you can do whatever you want.

 

[dbphelps]

Some of these cars came with a larger diff with an LSD in them. They will do burnouts and slide all day long. There is no intervention by any computer when TC and Stabilitrak are turned off. They are off and you can do whatever you want.

Of course a LSD rear end will. I was talking about OPEN DIFFERENTIAL rear ends, which is what ALL AWD ATSes have for both front and rear.

The LSD rears are used in the RWD varients. No one is arguing that, or that LSDs apply power to both wheels.

 

[hoser450]

Also, you can't do burnouts in these vehicles... The ECM program (notice I said program, not tune) is written in such a way that it prevents excessive loading of the driveline, ie, slippage and torque-spikes. It cannot be "tuned out" and it is done as these are not meant to be abused like that. Basically they are the epitomy of the "engineered to maximize durability of minimally built parts" mantra, which also ends up equating to "good fuel efficiency" as well, which is the actual excuse they use.

Of course a LSD rear end will. I was talking about OPEN DIFFERENTIAL rear ends, which is what ALL AWD ATSes have for both front and rear.

The LSD rears are used in the RWD varients. No one is arguing that, or that LSDs apply power to both wheels.

There was no mention of AWD in the above comment. You just said “you can’t do burnouts in these vehicles.”

The open diff RWD cars will do burnouts as well. Whether it’s one wheel or multiple wheels spinning, it’s still a burnout.

 

[ACooper85]

Sorry to jump on an old thread but, just to confirm. If I have a 2013 base model rwd I cannot swap in a Camaro diff in order to achieve posi?

 

[Lifespeed]

Sorry to jump on an old thread but, just to confirm. If I have a 2013 base model rwd I cannot swap in a Camaro diff in order to achieve posi?

My understanding is stability control needs to know about limited-slip vs. open. As seems to often be the case there is electronic involvement. The days of simple engine/transmission/differential swaps are long gone.

 

[dbphelps]

Sorry to jump on an old thread but, just to confirm. If I have a 2013 base model rwd I cannot swap in a Camaro diff in order to achieve posi?

As Lifespeed stated, the cars stabilitrak as well as ABS won't know how to respond properly to a posi rear end, which can cause a major safety problem if you need those systems in an emergency.

 

[matdogg]

Hi all,

I think I am in the same situation that most ATS owners reading this thread are in. The diff in my 2018 2.0 6MT is in the process of going out, and I just want to fix it without paying the dealer $3000 and waiting 6 months for my parts to come in.

To that end, I just ordered a used diff assembly from a 2017 Camaro 3.6 6MT to swap in (part number is 86827953, interchangeable with the Camaro 2.0 6MT). I'm going for the same ratio (3.27) and LSD like original. I believe I have found the right part to do that. I've been referencing this chart of all Camaro differential configurations: 2016+ Transmission/Differential Information - CAMARO6

My question is this:

I don't know if the diff assembly I bought for the Camaro includes the axle flanges. Does anyone know if the ATS axle flanges (RWD 6MT LSD) are compatible with the 3.27 LSD Camaro diff? Thanks all for the help and I will be reporting back after I'm done with the install in a couple weeks.

 

[Lifespeed]

Somewhere in this forum there is a Camaro diff swap. They stated the axle flanges are different. The description isn't particularly well-written, but you may find it useful regardless.

Do you know if the Camaro diff utilizes ball bearings on the pinion like the ATS/CTS? If it does, I would have a trusted rear end shop re-bearing the diff with proper tapered-roller bearings to ensure you only do the job once. It's a lot less expensive to carry the diff in to the shop for this work, my local guy quoted $450.

If you stopped driving your car before destroying the ring and pinion, you may have been able to rebuild your original diff.

 

[matdogg]

I don’t know what kind of bearing the Camaro diff uses, but I haven’t heard of them having the same problem so I assume whatever it’s using is better designed for the job. I will look into going ahead and replacing the bearings in it though.

I called a very popular driveline shop around here about rebuilding the Cadillac diff and before I even finished telling they guy the problem he said “yeah no you’re out of luck, you can’t get parts for that diff.”

 

[SPCDRAKO2.0]

So I have a automatic 2015 ATS 2.0 RWD LUXURY and I’m trying to upgrade my differential so both of my wheels can spin at the same time I read multiple posts and sights on how to actually do it but I need an exact list on what parts I need to get In order to fill fill the swap . I would highly appreciate it if someone can do that for me .

 

[gmorris_89]

So I have a automatic 2015 ATS 2.0 RWD LUXURY and I’m trying to upgrade my differential so both of my wheels can spin at the same time I read multiple posts and sights on how to actually do it but I need an exact list on what parts I need to get In order to fill fill the swap . I would highly appreciate it if someone can do that for me .

So i have done this swap. you do need custom tuning, and the cv axles and retainers/bolts are not compatible between LSD/Non-LSD (LSD has bigger flanges, bigger retainers, and longer bolts with a different thread size and pitch). you can buy a used diff and cv axles, but you'd be wise to buy 2 new sets of retainers to avoid headache with breaking the bolts. the retainers come in packs of 3 with 6 bolts enough for one axle. so you need two sets.

here are the OEM part numbers for each:

retainers(with bolts): 11601876 (you need 2 sets of these)
left cv: 23117789
right cv: 23117790
diff: 23156303

 

[DavidATS]

So i have done this swap. you do need custom tuning, and the cv axles and retainers/bolts are not compatible between LSD/Non-LSD (LSD has bigger flanges, bigger retainers, and longer bolts with a different thread size and pitch). you can buy a used diff and cv axles, but you'd be wise to buy 2 new sets of retainers to avoid headache with breaking the bolts. the retainers come in packs of 3 with 6 bolts enough for one axle. so you need two sets.

here are the OEM part numbers for each:

retainers(with bolts): 11601876 (you need 2 sets of these)
left cv: 23117789
right cv: 23117790
diff: 23156303

Where did you get custom tuning to go from a standard diff to an LSD?

 

[gmorris_89]

Where did you get custom tuning to go from a standard diff to an LSD?

Billy Lee Cooper tunes my car

 

[Ban0]

I tried one of those eBay differentials for my 2013 ats 3.6 Awd 6AT . It was faulty would lockup so I’m wanting to upgrade to an camaro differential. I wanna keep my 3.27
What are the part #s I need.
I understand I need a Camaro differential and from what I’m seeing I need 2016+ Ats Manual trans axles?
Someone PLEASE part numbers for parts I need 😭

 

[koppenolr]

Hi, I am confused, I read somewhere in this thread that a diff from '16+ manual Camaro is interchangeable with the ATS LSD (G80) diff without having to do any modifications.
But other posts seem to say otherwise.
Asking because I have an broken diff and new bearing set is not available. Really hard/expensive (or do not ship to my country) to find a LSD diff (non-LSD plentiful, but do not fit my ATS Coupe Premium) for my ATS.
Camaro diffs are many more available and much cheaper. Although they do look very different.

So, is there a 3.27 LSD Camaro diff which fit my ATS 3.27 LSD straight away or with some minor modifications?
And what would be the part number?

Thank you.

PS also asked help in another thread, but hoping the Camaro diff is an option.