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Diy:diff Shimming For R33 Gtst

Trust33

By Trust33,
in Tutorials / DIY / FAQ

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bubba Grand Master

bubba

Posted
Posted

Bubba, has it ever single pegged since shimmed? Also does it still chirp around tight corners?

Nope, no single pegging and it doesn't chirp around tight corners anymore. The only time I can feel it bind up slightly is full lock, reversing out of a parking space.

Even at its' worst (when it was nice and fresh), it was still nothing like trying to park the 32 with a button clutch and 2-way :P

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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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LANDSCRIBBLE Mentor

LANDSCRIBBLE

Posted
Posted

Ive rounded off the righthand side nut in this picture. about to pour petrol over my car and throw a match on it..

Tried smashing on another socket but its so hard to hammer it in the position its in.

Soaked the crap out of it in wd40

Any help would be appreciated.

r33lsd033-1.jpg

W0rp3D Grand Master

W0rp3D

Posted
Posted (edited)

How do you round off a nut when your using the right size socket? are you sure its not the ratchet slipping? try using a breaker bar and see if it still slips.

Only other thing i can think of, assuming you havnt round it off too badly, buy an impact single hex socket, in the mean time just keep soaking it in WD40 every 30 minutes or so, by the time you get a socket tomorrow it may have made a difference.

Edited by W0rp3D
LANDSCRIBBLE Mentor

LANDSCRIBBLE

Posted
Posted

not sure, the other one came off relatively easy. its rounded quite badly by the looks of it. just got the oxy torch on it, if i have to i'll replace the bush in there.

i doubt theres a more difficult place to round off a nut haha. oh well, extra points!!

Dan_J Veteran

Dan_J

Posted
Posted

mines working well for what its intended for, worn in with in a week and is nice and locked.

now has anyone set the backlash before and do they have part numbers for the backlash shims on the crown wheel?

now my diff does get some hard use now and again and it's started to chirp the rear wheels while driving normaly, straight with good tread tyres etc would this have anything to do with using castrol manual vmx 80 or i figure its also that i have to get backlash set ( as there is some play more then before it was shimmed )?

thanks :pirate:

  • 4 weeks later...
SargeRX8 Grand Master

SargeRX8

Posted
Posted

I will be considering doing this as my car really does not like giving me two wheels anymore. Straight line I am ice skating everywhere and it is definitely one wheel spinning... I tried to spin the tires(not for show but just to test the diff) and it is definitely only using one wheel when its spinning.. I don't care for burnouts but if I could tighten up the straight line action, that would be great but from reading here it seems this has more effect when the car is sliding/turning/coming out of turns etc and straight line its still a one wheel... Nissan should have made this diff tighter..

  • 2 months later...
R.3.2.G.T.R Grand Master

R.3.2.G.T.R

Posted
Posted

seems the appropriate thread to ask, anyone removed the pinion out of their diffs??

im in the process of removing mine, have removed the large nut (bloody tight) and splined flange off, the centres already out

tapped the pinion end with hammer lightly with the nut on it, but no movement

suggestions?

post-40640-0-51735100-1324532064_thumb.jpgpost-40640-0-87785900-1324531953_thumb.jpg

R.3.2.G.T.R Grand Master

R.3.2.G.T.R

Posted
Posted

seems the appropriate thread to ask, anyone removed the pinion out of their diffs??

im in the process of removing mine, have removed the large nut (bloody tight) and splined flange off, the centres already out

tapped the pinion end with hammer lightly with the nut on it, but no movement

suggestions?

Tony de Wonderful Veteran

Tony de Wonderful

Posted
Posted

It's not a proper LSD, just a highly preloaded VLSD, so it basically won't lock up much harder as you accelerate and you are relying upon the preload to do all the locking for you.

  • 2 weeks later...
  • 7 months later...
malkie Newbie

malkie

Posted
Posted

allright dudes,iv just finished with a mate his r33 lsd using 1.2 shims its allright but going more after the weekend,tryed getting 1.49s but nissan can only order them in from japland so i settled with 4- 0.8 and 4- 1.2 so im sure we'll get it good and tight soon,had a wee run there but not to happy but we'll give it a weekend first and c, ill keep yous posted

  • 3 months later...

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