sean16921

Is there a difference in the LSD in the 5th compared to the LSD in the 5.5 if so what are they thanks!

HotshotVQ35

iTrader: (5)

i *think* the 5th gen is a viscous type, where as the 5.5 is a helical and the 5.5 is better..

locknuts27

iTrader: (2)

2002-03 models only comes in HLSD?

HotshotVQ35

iTrader: (5)

in the 5.5 gen yes, it was also offered in the 6th gen, i think up to 06

TunerMaxima3000

iTrader: (4)

You can get the 2002 2003 without the HLSD of course, if that's what you're asking, but Hotshot is correct, the 2000/2001 LSD is a VLSD (Viscous Limited Slip Diff) and the 2002/2003 is a HLSD (Helical Limited Slip Diff), just to confirm.

T_Behr904

How can you tell if an 00-01 has VLSD? Is there a specific letter in the trans code that's stamped on the firewall plate?

TunerMaxima3000

iTrader: (4)

So it looks like a V or W after the tranny code denotes the Viscous Differential.

L36

iTrader: (4)

Can someone fill me in properly as what is the benefit of a LSD transmission?

TunerMaxima3000

iTrader: (4)

Is that a serious question? I cant tell

L36

iTrader: (4)

If id known i would not ask, this is why such forums exist.

Quit being a smart *** and answer the question.

T_Behr904

Mine with it being a manual would have the V if it was LSD, but it's an A. My car is fully loaded minus the LSD

T_Behr904

You can always Google "limited slip differential" and you would get a ton of information. It's good practice to research first, and then ask questions if you still can't find what you're looking for.

026spd

there is a couple threads out there about it and ya the 2000-2001 were only VLSD i cud be wrong about that so dont quote me but the HLSD which i remember just means that when u peel out burn out whatever both of ur front tires will leave the mark instead of the VLSD which will mainly only have one tire mark

forgot to mention HLSD also makes sure when u do peel out your car isnt all over the place and keeps u straight

HotshotVQ35

iTrader: (5)

you are correct that you are wrong

colind94

iTrader: (2)

I don't see any transaxle codes that end with b or w on that list.... Why I am not understanding?

colind94

iTrader: (2)

Edit* v or w.

nelledge

iTrader: (6)

Psssst. Look at the asterisks.

Rochester

iTrader: (3)

Forums like this exists for a variety of reasons.

Spoon-feeding petulant members who can't Google isn't one of them.

Shift_Max

iTrader: (18)

HLSD>VLSD

maxspeed96CT

iTrader: (9)

Where are you getting your info from. Viscous is a much better brand. Even the new z and the 07+ sport g35s also have viscous.

Shift_Max

iTrader: (18)

Incorrect that viscous lsd is better then an helical lsd. Yes lots of the new nissan vehicles use them however majority of the people also swap the vlsd out for a clutch type lsd. Reason being is that the vlsd is speed sensitive where the hlsd is torque based. Once the fluid heats up to a certain point, the vlsd becomes useless. Also the higher the mileage on a vlsd, the more it starts to act like an open diff.

The reason why the HLSD is better especially for a FWD vehicle is due to the nature that it is dependent on torque which helps with torque steer.

maxspeed96CT

iTrader: (9)

The 300zx TT diff was viscous... And those are bullet proof ! This viscous is better for drag racing, maybe for road racing the HLSD might be better..

essential1

iTrader: (5)

Not saying your wrong, but a friend of mine has a 96 I30 with the vlsd 5MT and he just rolled over 200,000 miles on the odo and the vlsd works just as good as another one with only 40k.

Tyutyunnik

iTrader: (1)

Just because the new cars come with it, doesn't mean at all that its the better option. Name me a true production sports car that runs a VLSD and I'll believe you. Nor is viscous a "brand", its a type of differential that uses a special fluid which solidifies when in motion (i.e. when one wheel is spinning and the other is not).

The sealed fluid in the viscous differentials is know to lose its "viscosity" after a certain period of time as the car ages, thus redering the LSD portion useless. The only way to fix that is to replace the diff or to have a mechanical type LSD in the first place. This is common on the Mitsubishi Eclipses that came in AWD and are nearing at least 13 years old. They would not perform nearly as well as a similarly aged audi with a quattro system in slippery or snowy conditions.

T_Behr904

Is the HLSD made by Torsen or is it similar in design?

locknuts27

iTrader: (2)

My question was based on LSD tranny. Wasn't sure if 02-03 model came either VLSD and or HLSD. But I have my answer now!

TunerMaxima3000

iTrader: (4)

This^

I wasn't trying to be a **** man, but really? LSD is SO OLD, you need to look that up. That's like asking what a spark plug does.

Glad we could help!















As far as the discussion on VLSD vs. HLSD, I would say the HLSD is the proven technology. VLSD has been experimented with, and is an incredible diff. It has characteristics that make is far superior to HLSD, but as stated, the fluid does deteriorate over time in some applicaitons.

This however, is not due to the VLSD design. It's due to the manufacturers cheaping out on the Viscous fluid coupling. The VLSD is already expensive, and to get a really good one is even more expensive. The VLSD outperforms the HLSD, plain and simple, but it's more expensive to build it properly.

At least, this is what I've come to conclude about the VLSD, and it's ON/OFF use in the car market and racing applications.

BobPezz

iTrader: (5)

I believe the Torsen diff is an HLSD design. The only other HLSD diff design that I know of is the Detroit Tru-Trak. Used in front axles on 4x4 trucks. I put one in my 79 Bronco along with a Detroit-Locker (ratcheting diff) in the rear. All 3 of these are the aftermarket mfr brand names, associated with off road/racing applications. But I think Torsen licenses out their design for OEM use as well.