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Dead Diff

R31Nismoid
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R31Nismoid Grand Master

R31Nismoid

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As i suspected... the night i blew my turbo... i did my diff as well.

Didnt get to test it out till tonight (but at least the car goes well in general)

So, for an R31... with the R200 (think its a long nose)

What goes into it easily, and is tougher than what i had.

As i've never heard of an R31 Coupe blowing it's diff... but this one has.

And now im goin to have a fair whack more power too so i dont wanna be frying them every 6 months.

Would a 1.5 way LSD (whatever they are called) for an R32/R33 fit into the R31 diff?

Dont wanna go buying something and not have it fit!

- ash

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predator Grand Master

predator

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Well I'd speak to some diff specialists, they might be able to build you whatever you want in your old casing and just give you new crown and pinion gears. Otherwise I guess you're going to have to swap the whole diff over for something else.

Just gotta weigh up the costs which is the cheapest.

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R31Nismoid Grand Master

R31Nismoid

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The whole diff replaced? Or just the input shaft...

Either way... talking to 'experts' i've found to be a pain in the arse.

No-one knows when it comes to an R31.

That's a tried and proven thing.

As i can see it now... i'm gonna have to spend 'X' amount to have someone look at it, and then tell me they dont even know. Put it back together... and then leave me none the wiser and $400 in the red

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R31Nismoid Grand Master

R31Nismoid

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Hmm.. the R31 is R200.

And it is IRS, albeit a tad different to an R33 IRS.. but IRS all the same.

Not Live like the Aust Delivered models.

I dunno about fitment though.

Do you know pete?

You've done a bit of playing around im sure

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fatz Grand Master

fatz

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yea what v8skyline man said

the 31 is r200

the 33 dont know

the input pinion is know to give up onthe old 31 diffs... mine is a bit shagged

i replaced the centre of my diff with a 2 way cusco diff centre that i removed form my s13 silvia which is the same. drive shafts are the same but the r31 ones are longer i had to machine mine down to fit... which i guess would make them weaker

spose ill find out when i try and drift fourth or something stupid

im sure you could replace the imput if thats the problem becasue a whole new r31 housing ect cost 600 used

if its just the centre youc an get it tightened for 350 and or replaced for about 500 with a used centre( locker)

pete

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R31Nismoid Grand Master

R31Nismoid

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the input pinion is know to give up onthe old 31 diffs... mine is a bit shagged

Thanks pete!

What about getting another pinion made up? Or even a stonger one?

Or is that just not cost effective... as Import 31 diffs are hard enough to come by as it is... and that means they are going to cost more and more.

Also, i was talking to chris the other day...

I need an Import Diff Bush, do you know what it is, what it looks like???

Chris said i could have one out of the car he is wreckin... but he has no idea what one looks like (neither do i) I cant get pics of it for a few weeks yet to send to him.

Mine is totally knackered and the diff moves around something chronic, probably had some part in the diff playing up.

But the S13 fits... so if all goes to plan i'll be getting a 2 way out of an S13 that is coming over.

Thanks for the help so far guys. I thought it was going to set me back thousands :flower:

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