Rear LSD?

[biggie]

Can't find any clear info on the web and had heard at least the sport came with LSD but its not listed on my original window sticker I was just looking at.

Can anyone confirm if any 11-13 M came with rear locking diff?

Thanks

[wideopn11]

Not sure but apparently you can buy one on ebay.

http://www.ebay.com/itm/11-12-13-INFINI ... 1169998615

[biggie]

Maybe the sport comes with one then and it just isn't listed.

Hope someone knows.

[biggie]

Owner's manual mentioned limited slip differentials, just doesn't say how to tell if you have one or which models came with it.

[wideopn11]

Yeah I've got AWD so never really researched it.

[coolchuck]

Wow, I cant find anything online either.

[biggie]

According to a tech at local Infiniti dealership, all M56 come with LSD standard. It is only an option on the M37.

[Ilya]

According to a tech at local Infiniti dealership, all M56 come with LSD standard. It is only an option on the M37.

Would this explain why even with the 'traction control' (the car with the turn lines button on the dash) off I wasn't able to really slide the car in the 5" of snow I just drove home through?

[biggie]

Yours is awd. Completely different

I'm sure you have a rear lsd, but the awd system is designed to send power to front wheels when rear spins.

[Ilya]

Yours is awd. Completely different

I'm sure you have a rear lsd, but the awd system is designed to send power to front wheels when rear spins.

I probably didn't have LSD on my M35x, but my M35x would easily do donuts if I turned off traction control (VDC on that car). I'd put it in snow mode to make the split 50/50 and do nice tiny donuts lol.

[AlphaSnacks]

I can confirm this car has an LSD. It's the same VLSD used in the automatic 370Zs. I actually believe all M56s have a VLSD. Base model M37s are open diff. And Sport Pkg M37 should have VLSD like the G37 Sport and 370Z with Sport Pkg.

I know for sure the M56 has a VLSD from Infiniti techs and because when you stomp on it with traction off both tires spin equally with no side-to-side sway or one wheel peel.

[AlphaSnacks]

Also part SKU between the M's diff assembly and 370Z's are the same: 38420

[Ilya]

I can't get this car to break the tires loose from a stand still at all.

[AlphaSnacks]

I can't get this car to break the tires loose from a stand still at all.

Well that's the point of ATTESSA AWD, it has active diffs that are always adjusting power front to back.

Mine is RWD. Perks of living in Florida means I don't have to worry about bad weather, like snow and ice.

[biggie]

Yeah the RWD of mine breaks loose easily, especially in rain.

[Ilya]

I can't get this car to break the tires loose from a stand still at all.

Well that's the point of ATTESSA AWD, it has active diffs that are always adjusting power front to back.

Mine is RWD. Perks of living in Florida means I don't have to worry about bad weather, like snow and ice.

That's the thing, on the Y50 if I turned off VDC and left snowmode off, I could still get the rear end to step out. On this one, I can't no matter what I do. It behaves the same way with stability on or off. Although, my last AWD didn't have an LSD so (I don't think it did anyway)...maybe that's why.

[wideopn11]

Yeah AWD is NOT going to let the back end hang out much if at all. Believe me, I've tried hard.

[AlphaSnacks]

That's the thing, on the Y50 if I turned off VDC and left snowmode off, I could still get the rear end to step out. On this one, I can't no matter what I do. It behaves the same way with stability on or off. Although, my last AWD didn't have an LSD so (I don't think it did anyway)...maybe that's why.

I had an FX35 2006 in NYC and it would do the same in poor weather. The older AWD systems were a bit slower to manage power.

[rjoe]

My understanding is that the RWD variants of the M do not have any LSD capabilities. This means no conventional LSD and also no computer controlled braking for the tire with less traction.

[biggie]

My understanding is that the RWD variants of the M do not have any LSD capabilities. This means no conventional LSD and also no computer controlled braking for the tire with less traction.

From recent talks with Infiniti, all M56 have rear VLSD. It is an option on the M37 (comes with the sport package normally).

[SwissCheeseHead]

Easy way to find out. Do a short brake stand to see if you get one streak or two streaks.

[biggie]

Or jack up the rear put in neutral and spin a wheel.

[SwissCheeseHead]

Or jack up the rear put in neutral and spin a wheel.

Yeah but that requires a jack/jack stands (or a lift if you have one) and is not nearly as fun

I wouldn't ever do it though.

[rjoe]

My understanding is that the RWD variants of the M do not have any LSD capabilities. This means no conventional LSD and also no computer controlled braking for the tire with less traction.

From recent talks with Infiniti, all M56 have rear VLSD. It is an option on the M37 (comes with the sport package normally).

The window sticker on my M56S doesn't mention anything about VLSD, and the traction control activates far too easily for there to be an LSD.

[SwissCheeseHead]

The window sticker on my M56S doesn't mention anything about VLSD, and the traction control activates far too easily for there to be an LSD.

Not necessarily true about traction control. My G37S had an LSD and traction control kicked in immediately after sensing wheel slip. I would just do it the old school way to find out. Turn off VDC and let the wheels spin if you want to find out. I have AWD so I can't test it out for you RWD guys.

[biggie]

The window sticker on my M56S doesn't mention anything about VLSD, and the traction control activates far too easily for there to be an LSD.

Its not on the window sticker, that's why I asked and was answered by the mechanics at the local dealership. Standard on all M56.

Makes since as 417tq would kill one tire most of the time probably.

[AlphaSnacks]

Easy way to find out. Do a short brake stand to see if you get one streak or two streaks.

Read my posts above. I can confirm this car has a VLSD. Same one as the 370Z and G37

[LOOKATTHATSHINE]

So it is believed that the M37 w/ Sport Package also has the VLSD?

[biggie]

^yes. Believe it is listed in the sport package on the window sticker.

[AlphaSnacks]

It isn't. I have the window sticker to my car, and they don't specify the VLSD. But the car is equipped with one, regardless.