R200 Single Spinner

[Ghostrider]

Has anyone got a use for one of these in 3.9 ratio? AND is $250 to much money.

Comes complete with half shafts if I don't buy them first.

Cheers.

[stagefumer11]

Has anyone got a use for one of these in 3.9 ratio? AND is $250 to much money.

Comes complete with half shafts if I don't buy them first.

Cheers.

<{POST_SNAPBACK}>

i was under the impression that all R200's were LSd's apart from some of the 280xed ones which dont fit r30's

[V8skylineMAN]

Do the axles fit like this, or are they like the old 1600 styles with the 5 bolts holding the axles seals in place? also do you know if i can fit the old style axles into this type of diff?....bugger it ill give it a go anyway..BTW my R200 simple spinner only cost me 100 bucks(no axles tho)it came from an r31

[Matty T]

...also do you know if i can fit the old style axles into this type of diff?

<{POST_SNAPBACK}>

What are the "old style axles" to which you refer? Do you mean 1600 axles, or the 280ZX axles?

[george.bryant]

R200s are LSDs....Paul Newmans and other various L series motors use them.

[Duncan]

most R200 are not LSD only the later skyline ones 32 onwards are all LSD and they are short nose not long nose

[Boof]

most R200 are not LSD   only the later skyline ones 32 onwards are all LSD and they are short nose not long nose

<{POST_SNAPBACK}>

Beg to differ...All the DR30 range, and i beleive the HR30 and Paul Newman versions all ran a clutch pack LSD as standard from the factory...You the part about the long nose/short nose bit right though

[SteveL]

Beg to differ...

<{POST_SNAPBACK}>

Depends on what you define as 'most'....long nose R200 was used all the way back to 260Z in 1974, but LSD wasn't a factory option for cars sold in Oz and 'our' R30's only came with an R180. So 'most' turbo R30's sold in Japan may have had an R200 LSD, but long-nose R200's with LSD are rare in Oz and virtually all are imported or retro-fitted aftermarket jobbies.

[Matty T]

Yeah, the thing is, "most" of the (long nose) R200 diffs that are in Australia now came out of Zeds. Of all the Zeds, only the Z31 300ZX Turbo came with an LSD from the factory.

On top of all that, you have the 10mm / 12mm crownwheel bolt hole issue...

[0HR-30T]

Do the axles fit like this, or are they like the old 1600 styles with the 5 bolts holding the axles seals in place? also do you know if i can fit the old style axles into this type of diff?....bugger it ill give it a go anyway..BTW my R200 simple spinner only cost me 100 bucks(no axles tho)it came from an Hr31

<{POST_SNAPBACK}>

Fixed

[discopotato03]

12mm bolts are not an issue as the carrier or hemisphere does not locate on the bolts , simply drill the holes larger ie 12.5mm . The hemisphere locates on the large inner hole in the crown wheel .

Cheers A .

[stagefumer11]

Im tihnking of using a R32 lsd unit, HAs anyone fitted these to a R30 rear end. IS it possible. >?

[Matty T]

It isn't an issue drilling out the centre's holes, but it can be more of an issue going back the other way (ie. sleeving the 12 mm centre holes for your 10mm crownwheel - like Stagefumer11 might need to do).

The crownwheel may not locate on the bolts, but they help the crownwheel maintain friction on the centre. When the diff gets abused, they sure can be in the line for some punishment! I have seen these bolts sheared off more than once...

[discopotato03]

True but open R200's are still around and the 12mm bolt type is the best option here , why Nissan went that way with Turbo DR30's , R31's etc . Once you have the LSD carrier the rest is pretty strait forward . You need to find a mechanic thats been down this road many times and knows what what .

[Matty T]

For everyone's enjoyment, I thought I would show some photos I just took in my shed. I happen to have a 10mm and 12mm (longnose) R200 handy...

A shot of the subject at hand. 12mm bolts on the left, 10mm on the right:

Note the difference in crownwheel thickness:

Another shot of the crownwheel difference:

Edited September 10, 2005 by Matty T

[discopotato03]

Matty I'm curious to know the ratios of both of those as most differential manufacturers have a different offset somewhere in the middle of the ratio spread . I can't remember with R200's but I think it may have been around the 4.375 point . Anyway is not generally a drama as theres heaps of latitude for correction , my old H190 with the Detroit locker used an approx 100 thou (2.5mm) spacer plate as its offset was intended for the 4.625 ratio which was the change over point in H190's . R200's are much better than H190's because the spacer rings or shims are on the outside of the carrier bearing races not the inside (pulling bearings off to select fit shims is a time consuming pain in the butt) . So the spacer rings can be used to a limited degree for changing offset (as well as setting bearing pre load) . The really difficult situation is where the carrier with the lower range offset is used with the higher range offset crown and pinion as there is no way to move the crown wheel far enough to get it in next to the pinion .

I don't know if this makes any sense to you but understand that every different ratio will have a slightly different crown wheel thickness . This is because the number of pinion teeth change and so must its diametre . There's no whay Nissan would have a different main housing for each ratio so the crown wheel thickness was varied to allow the difference . R200 ratio's ranged from around 3.1 to 5.3 , the tallest having the lowest no of c/w teeth and highest of pinion teeth and the shortest vice versa . The carrier flange offset changed in the midst so that taller ratio c/w's would not be too thin .

Cheers A .

For everyone's enjoyment, I thought I would show some photos I just took in my shed. I happen to have a 10mm and 12mm (longnose) R200 handy...

A shot of the subject at hand. 12mm bolts on the left, 10mm on the right:

Note the difference in crownwheel thickness:

Another shot of the crownwheel difference:

<{POST_SNAPBACK}>

[Matty T]

Exactly. Understood completely. You got it in one.

4.375 on the left, 3.7 on the right.

Hey, if anyone out there has a 4.875 or 5.1 lying around, I would be most interested to hear from you...

[discopotato03]

And so would Stu Wilkins amongst others . Anything shorter than 4.375 is now rocking horse`do do . Stu searched world wide for 5.1 and 5.3 with no luck . I remember seeing one of the last brand new 5.1's before it went int a Zed rally car . I think these two ratios were Nizmo options not used in any production vehicle .

Cheers A . P.S if that 3.7 had 12mm bolts I'd buy it off you !

[datsqik]

Im also looking for a 3.9 open longnose r200 or maybe a swap with a 3.5 open.

[discopotato03]

You have a long nose 3.5 , what crownwheel bolt size ?

Cheers A .