R32 GTST Diffs

[Roy]

Well pulling into a driveway today at an angle, i noticed that when the rear left became unweighted it free wheeled and the car struggled to get up the driveway ramp...so needs new diff by the looks of it

Is there anyone that has had the std Nissan diff reco'd, what can be done...who is running an aftermarket mechanical diff, names brands. I found a Kaaza dealer but its going to be about $2200 fitted for a 2-way diff

[Chris32]

Interested to hear anyones responses about this one.......

I have a GTR diff and driveshafts lined up, just in case mine lets go

If not out with the MIG welder and some safety glasses

[PHaT MR30]

if its viscous, its non-servicable, maybe you need to change the oil in it? u could shim it to lock it up a bit more aswell at the same time

[Roy]

I was looking at a GTR rear cradle, friend with a 200sx was going to get the brakes whilst i got the diff. Only they need work to fit into a GTST so i didnt bother...

Id much rather a bolt in affair unless someone can point me in the direction of a mechanic that has done this modification/transplant before...as id rather not be paying for someone else to learn on my car and charge me for the process

[mist]

hey troy, u seen my FS ad? NISMO GT-Pro 2-way mechanical LSD, adjustable, full kit

[Clint32]

to run a gtr diff you need to put the internals inside your std casing, then run the gtr driveshafts and hubs to suit the output on the diff. the driveshafts are biggers and run bigger slpines so you need the hubs to suit, all very easy to do once you have the parts

[Roy]

Clint to the rescue!!! So yoy sound as though you have done this?

A question no one has been able to answer for me is... is the GTR hub aluminium...im assuming the GTST is cast iron...so if the GTR is lighter, then i will go to the trouble of getting the hub/driveshafts etc, otherwise ill stick with a GTST diff.

...and mist how much are you asking?

[Clint32]

yeah i did it when mine died, the gtr hub itself is cast the same as the gts one but the hub mount is alloy, whereas the gts is cast as you said, you could bolt in the alloy hub mount off the gtr but you would need to use gtr rear shocks

[Roy]

Are we talking a weight difference of 50%, 100%? Im waiting for Whitelien to release the Group 4 coilovers for the R32 GTST, if i replace the hub mount then ill be able to run R32 GTR rear shocks (available) and R33 GTST front shocks (available) so seems doable...provided the weight saaving makes it worthwhile. I suppose the added driveshaft strenght shoudl be enough to warrant the change

[Clint32]

they would be half the weight im guessing, so probably 3kg or so lighter

[Roy]

Only other thing is that to the best of my knowledge, R32/33 GTR diffs are viscous LSDs as well, so buying 2nd hand i may be buying one that open wheels, are the V-Spec diffs mechanical?

[DoughBoy]

V-Spec have active lsd's, you need to run the whole pump setup if you go that way.

p.s. buy an aftermarket lsd off me, bitch!

[Clint32]

r32 gtr is mechanical i thought, thats what im using and its been modded as well, very tight and noisy but donest slip.

[Skyrine-Dave]

how much does the R200 long nose diff differ from the R32 gtst diff? I'd like to go a mechanical diff in my HR31 but dunno if 32/33 stuff will fit :S ?

[DoughBoy]

I think the Z series diffs interchange with the R31, they are the long nose type. Alas, I don't know what sort of centers the Z's have in them - ask John (Boosted Zed).

[Russco]

Clint - yes I know about the noiseas I got the same diff in my GTST. Mine makes a clunking sound when doing tight right hand turns although I've been assured this is normal - does yours do the same thing?

[R33NT]

I had my GTS25t viscous diff done by UAS for $1200 a year or two ago.

Before i had it done i would spin the wheels in the wet constantly and when accelarating through corners it would spin one wheel followed by the other and then heaps of sideways action.

Now i have to do nasty stuff to get the wheels to spin and through corners i can hold the throttle nearly flat without going sideways. Going up a gutter where one wheel is left hanging and the other planted it pulls up without ANY wheel spin. Even after a year or two (i forget how long i have had it) it will still skip the wheels ie lock up when you are turning and you apply some throttle. As far as i know it is a GTS25t diff housing with GTR internals and a clutch pack, call John Penlington and ask him since cant remember the story.

http://www.uniqueautosports.com.au/priceli...rts/r33diff.jpg

http://www.uniqueautosports.com.au/priceli...ylineclutch.htm