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Diy:diff Shimming For R33 Gtst

Trust33

By Trust33,
in Tutorials / DIY / FAQ

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Bauerpower Newbie

Bauerpower

Posted
Posted

Defiantly worth the effort. Both wheels lock well under power. Can boost it rite up in tight corners and also both compression lock up under braking and the car remains straight. Feels much, much better then the 2-way LSD in the Passage. When it does let go in a power slide the control is incredible compared to before. A recomended mod for anyone.

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Cubes
Cubes

Simply add the new shim to the existing shims. I usually remove the diff by: 1. Drop the sway bar chassis mounts, leave the risers attached. 2. Remove tail shaft. 3. Remove Half shaft bolts (have

Rolls
Rolls

It is just shims, they can be easily removed or changed. No need to find a whole new diff.

Bauerpower
Bauerpower

For the first time in its life my 33 has finally seen some decent hp after a turbo upgrade (gt3076 on 20psi) and an ecu of course. Not to my surprise the LSD had no chance at doing its job and started

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SargeRX8 Grand Master

SargeRX8

Posted
Posted

Defiantly worth the effort. Both wheels lock well under power. Can boost it rite up in tight corners and also both compression lock up under braking and the car remains straight. Feels much, much better then the 2-way LSD in the Passage. When it does let go in a power slide the control is incredible compared to before. A recomended mod for anyone.

Where are you located? Would you do the job for others as I don't have the appropriate tools and my car always one legs and pulls to one side. Obviously some moola will be given. Can post the internals so you don't have to take the entire diff.

Bauerpower Newbie

Bauerpower

Posted
Posted (edited)

Its a very time consuming process and time is something I don't have at the moment. Probably give me a month and PM me and it might be possible. Between this car and work there's nothing left. Sorry.:(

On another note I hit a realy tight corner yesterday going way too fast and got a chirp from the inside wheel so its defiantly working well.

Edited by Bauerpower
  • 2 weeks later...
Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

saved our ass here in the UAE =) doing it now.

fitted em up, what a bitch to get the center back into the car lol. when i finaly got it in, the splines on the longer half shaft didnt line up in the final section. what a bitch, back out with the center it came, i did actualy line up the splines like you said, might i add for anyone else doing this. once you put ur shims in put both half shafts into the center completly in, then tighten the 2 philips heads, then leave the shafts in. put ur ring gear over the top and rattle that up with the half shafts still in the center. makes it alot easier and no room for error. the first time i was literaly .2mm off the splines being 100percent. and yet it wouldnt go in all together.... peace!

  • 3 weeks later...
Rolls Grand Master

Rolls

Posted
Posted

Any chance of getting the pics working again really want to give this a go. So say about 3mm would be good for drifting or should i go more like 3.4?

Pretty much depends how screwed your diff is, it'll basically either be almost completely locked or it'll skip around corners and open up under power (worst of both worlds), or it'll be the same.

So just go the biggest you can get in there if you want to lock it, if you want it to be like an LSD just get an LSD.

bubba Grand Master

bubba

Posted
Posted

My local Nissan had them in stock.. did they say they were ex-east? or ex-japan?

3 weeks sounds about right from Japland, everything I've gotten that was ex-east gets sent in an overnight bag so I have it within a couple of days (case in point, ordered a brake booster 1-way valve on Saturday that was ex-east and it arrived yesterday).

  • 2 weeks later...
  • 1 month later...
Dan_J Veteran

Dan_J

Posted
Posted (edited)

just got around to putting mine in,both sides have a shim or 2 with 3 in total so i've got more then 3.6+ mm in there nearing 4 id say (will need to double check invoice to confirm).

so question is how long does it take to bed/ wear in as in getting some shuddering under hard cornering ?

Edited by Dan_J
  • 4 weeks later...
vnordin Newbie

vnordin

Posted
Posted

Hello!

I have heard that you can´t shim up a GTST Diff for it´s a viscodiff and not a lsd diff, the shims may take all the power from the diff and the viscodifferential will break? That a shimmed diff will not work in the long run? Is this bullshit or true?

Many people seem very happy with their but boring if it would break!?

sorry for my bad English, I am Swedish pirate.gifaction-smiley-069.gif

Victor

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