My VLSD always drift to the right in snow

[elpiar]

I'm in ohio and this morning we got our first snow shower.

I got J30 VLSD diff. with kumho ecsta asx tires

My tail always drift to the right when I lose traction. It seems to me that the right side spins faster than the left.

I am also suspicious cause when I bought the car last year the right rear tire is all bald while the rest is still at 50%.

Is this inherent to VLSD or something is wrong with my transaxle?

[homeslicej2]

Could just be that the power transfer from the motor to the rear end goes to the right rear (pass.) wheel first.

[elpiar]

Could just be that the power transfer from the motor to the rear end goes to the right rear (pass.) wheel first.

So by that you mean that it's inherent to the way VLSD work?

[Slappy]

I'm in ohio and this morning we got our first snow shower.

I got J30 VLSD diff. with kumho ecsta asx tires

My tail always drift to the right when I lose traction. It seems to me that the right side spins faster than the left.

I am also suspicious cause when I bought the car last year the right rear tire is all bald while the rest is still at 50%.

Is this inherent to VLSD or something is wrong with my transaxle?

Are you sure you even have a VLSD and not an open diff?

[funigui]

just do a burnout on dry pavement and check for a 1 wheel peel

[elpiar]

Yes, it does the same thing in dry pavement.

But it's got VLSD for sure. both wheels turn the same direction when jacked up.

[Slappy]

I think all cars RWD tend to slide one way or another when the rear breaks loose. Ever seen a mustang power brake it and the rear is slightly coming out?

[gumby74]

The guy that does work on my 4x4 said it had something to do with one axle being shorter and the side of the ring gear in the housing. When I was talking with him i was not really paying attention because he was doing some welding on my gas tank.Kinda like watching the train go off the tracks. You know its bad, but you just can't stop watching.Or it is possible your VLSD isn't viscous anymore. Those things do have a shelf life.

[got chub]

when i spin my 240, 350 or my dads ZO6 the back end kick out to the right i think it just the way RWD car are

[redtop91]

Yes, it does the same thing in dry pavement.

But it's got VLSD for sure. both wheels turn the same direction when jacked up.

If that is true then you need another differential. That one is shot. It might be enough to lock the axles together when your hand is torquing it but it's clearly not enough for torque the engine is putting on it.

[goldeneye9mm]

ok i work in a tire store (NTB) i've sold ecsta asx b4 and they have an asymetrical design that will only point in one direction and i do believe it is to the right. not saying this is your problem but there is a chance that this could cause that. just 2cents

[Invalid Zero]

It's most likely because of the crown of the road. Roads aren't made flat, they have a slight crown to evacuate water to the gutter/ditch.

Pull onto the wrong side of the road and try spinning em.

[White Comet]

^ good point i agree thu that it sounds like its dead. hows the fluid in it?

[murda-c]

i have an open diff, and i always spin my right rear, but i assumed it was because i'm sitting on the left

[Invalid Zero]

i have an open diff, and i always spin my right rear, but i assumed it was because i'm sitting on the left

No, that's because that's what open diffs do.

[240sx_Guy]

the drive shaft is spinning towards the pass sidethe torque from your drive shaft causes right wheel to burn or for the wheel to get better traction

or something like that

[elpiar]

No, that's because that's what open diffs do.

So if the VLSD is geared similarly as in open diff, but with viscous coupling between two sides, then the ring gear is connected to the right side, correct?

In that case, I guess the question is how much difference in terms of rotational velocity is considered normal between the two sides to say that the LSD needs replacement?

[White Comet]

the drive shaft is spinning towards the pass sidethe torque from your drive shaft causes right wheel to burn or for the wheel to get better traction

or something like that

that kinda makes sense but i dont think that'd be all the reason

[murda-c]

No, that's because that's what open diffs do.

my open diff does what it does because that's what it does?

it's so clear now.

[Dattebayo]

The way to check for a VLSD is to turn the driveshaft and see of both wheels turn when jacked up.

Also, J30 diffs often break soon after install, the viscous couplings in them are old and die quickly. No, you can't replace the couplings.

[elpiar]

The way to check for a VLSD is to turn the driveshaft and see of both wheels turn when jacked up.

Also, J30 diffs often break soon after install, the viscous couplings in them are old and die quickly. No, you can't replace the couplings.

Yes I did that and both turns the same way, so it is definitely VLSD. also, I think i was told it has a stamp R200v in it? no?

in open diff, the wheels turn opposite way.

[elpiar]

my open diff does what it does because that's what it does?

it's so clear now.

I think what he's saying is that in open diff, the ring gear is on the pass. side so, it will be the one that spins first, and since you have no coupling to the driver side wheel, the driver side wheel stays (in the case of zero traction on the right side) cause there is no way to transfer the torque,.

[thenillaz]

I'd say most likely your VLSD is shot or whatever. But the fact of the matter is that you have a VLSD, which doesn't have much of a limited slip charactoristic to begin with. VLSD = Open, might as well get a helical or clutch type.

[ivorywhite240sx]

Hmmm...

[Scuffed_ChukiCoupe]

wth... when i do burnouts my driver side tire always is the one to spin. Rarely does my passenger side spin. Ive never seen it spin or felt it spin unless the weight was on the driver side. Based on what im reading buying a j30 vlsd is a waste of time?

[White Comet]

I'd say most likely your VLSD is shot or whatever. But the fact of the matter is that you have a VLSD, which doesn't have much of a limited slip charactoristic to begin with. VLSD = Open, might as well get a helical or clutch type.

i agree w/u on getting a clutch type but im not really a fan of hlsd. its already it just doesnt suit my driving needs

[jgtc_s14]

my car always steers to the right too, when im accelerating hard and my wheels spin. I guess thats just the way 240's are.

[homeslicej2]

I'd could go into a big long epilogue about power/torque transfer in a front engine/RWD vehicle, but I won't bc it's easily found info on the web. Regardless of that issue, I agree with Redtop. If your car is pulling to the right under accel on dry pavement with a stock power KA your diff is probably shot (vicous coupling gone). Check out 240 tech and for more info on power transfer and how open/VSLD/HSLD/etc. work.

[White Comet]

wth... when i do burnouts my driver side tire always is the one to spin. Rarely does my passenger side spin. Ive never seen it spin or felt it spin unless the weight was on the driver side. Based on what im reading buying a j30 vlsd is a waste of time?

not really a waste, it depends on the price and its kinda hit or miss

[elpiar]

I'd could go into a big long epilogue about power/torque transfer in a front engine/RWD vehicle, but I won't bc it's easily found info on the web. Regardless of that issue, I agree with Redtop. If your car is pulling to the right under accel on dry pavement with a stock power KA your diff is probably shot (vicous coupling gone). Check out 240 tech and for more info on power transfer and how open/VSLD/HSLD/etc. work.

Ok, i'll do some more research. I know how VLSD work and its basic components, but about the torque transfer I need more reading.

BTW the pull on dry pavement is with 8psi boost on 1st gear, not stock KA.