Hey everyone,

I recently heard from a friend that I may be able to get a deal on a 2004 350z Viscous LSD that I can't pass up (less than $100). The problem is that I don't know how many miles it has. It still locks up when turning one side but I don't know if it does under load because the car is not drive-able.

Are there other ways to check if the viscous fluid is still good with the diff. out of the car?

Is it really impossible to change the viscous fluid / rebuild a viscous diff.? Any way to drill and tap the sealed housing?

I eventually plan on getting an aftermarket lsd but I don't have the money right now. I am looking for something that would be fun to play around with on a mostly stock engine.

Thank you!

 

change the fluid, yes (you'll need to fill it when swapping it anyway)...rebuild, no (don't think so / never heard of it). For $100, take a shot, specially if you would do the swap.

PS - I'm assuming you're referring to the entire pumpkin w/VLSD.

 

Dude just buy it and put it in. Worse case scenario is you take it back out and reinstall your open diff.


The swap isn't too difficult and $100.00 is a great price.


But you could always take off the cover and check the condition of the fluid etc.

 

True haha I'll probably just try it out. It would be the whole unit and I would be removing it from this Z and installing it in mine.

I've never seen inside a vlsd, from what I understand the viscous fluid is not accessible nor replaceable and doesn't last extremely long?

 

The fluid from the case is completely separate from the VLSD carrier. The VLSD part is not serviceable and there is no way to tell how much more it sucks than a perfectly working VLSD.

 

LOL, how do you really feel about the vlsd...?

 

For driving back and forth to the office and getting groceries, it's ok. From a performance aspect, it's junk.

 

If you don't mind. I just put a stock vlsd in my base and I certainly feel a difference.


What more could I expect from a real lsd. I do feel a slight delay from the rear when cornering. Is that delay removed with one?

 

night and day difference, my car had the vlsd and i came across a pumpkin with the quaife diff for $300 and my pumpkin. with the quaife when you went around a corner, it pulled you around it.... when i deliberately slid it, it was easily controlled

not to mention, two solid tire marks... even with the stock vlsd, you are still pretty much a one wheel wonder

 

Ah I see... *re-adjusts budget*


Thanks

 

i got really lucky though, a buddy was trading his car in... so if you find one that cheap, awesome, but expect to pay more

 

Yeah that's a great price. looks like I'm looking around a G at least. But that's cool, I want one!

 

Haha, well I guess I'll try it because I can get it so cheap but I won't expect too much!

 

hundred bucks you can't go wrong... get it, slap it in, enjoy it... sell it when you want another one

 

I went from VLSD to OS Gikenin my touring and installed the VLSD in my base. From open to VLSD in my base I could feel it slightly , from VLSD to OS in my touring , it was night and day. The car felt slow because the tires were actually gripping.

 

If one of the rear wheels were to lift up off the ground from say a very steep driveway, then the car gets stuck with an open diff. The VLSD works great if you're ever in this situation which I am every morning.

 

very true!

 

Same with the Quaife.

 

I was saying that's pretty much all that the VLSDs are good for. The Quaife would be better suited for track.

 

I really have no complaints about the Quaife in my Z, and all the various types have their compromises. Thinking of trying a Wavetrac in my 6-series BMW.