L.s.d

[30psi]

Wow, you're a bit rude.

Is the kingcab diff an R200 then?

[30psi]

Quick google found this

'The Xterra and Titan get the D44, Frontier gets the D44 or C200, Armada gets the R230, Pathfinder gets the R200'

Pathfinder


Not seen one of these in the scrapper, and I doubt there gonna be cheap.

An S15 diff or an R200 skyline diff will work, Japandyno flogs these on ebay, sometimes they go cheap.

[Conkers]

I don't think any of those look much like a kingcab!

I haven't any experience of using a kingcab diff (just the guts), but I know I have read about it on the net and seen pictures.
Not all kingcab diffs will do the job though, but if I really wanted one, I am sure I could find the info and a diff without too much trouble.

Conkers.

ps.. didn't mean to come accross as rude, I just don't tolerate pillocks very well this time of the morning.

[30psi]

Well from what I can tell only the Nissan 4wd thing above has the R200 independant rear end. Of course then you may not need the guts as it were. The R200 diff comes inside a long nose or short nose casings. The S12 and the Z31 used the long nose type, S13, R series uses short nose.

Subaru diffs are R160/180 and are long nose, they actually fit to the S12 cross member. The only issue there would be adapting the driveshafts and making a new rear bracket.

I'm surprised at Nissan though, I'd expect their 4wd's to all to be a live axle, but I guess its Nissan being realistic to the fact that some of the vehicles are only used in taking the kids to school

[Conkers]

Strewth.... it doesn't matter if it is a live axle or not,

First measure the backlash on your s12, (backlash is how much the crownwheel rocks on the pinion. Keep a note of this as you are going to use the original crownwheel again on your lsd.
Then you remove the guts from the kingcab rear axle, remove the crown wheel and bearings and throw away everything except the diff cage (with plate type lsd).
Then.. as long as you have the same bolt diamters, (apparently some were 10mm and some 12mm) fit your original crownwheel from your original non lsd (or gay viscous) rear axle onto the kingcab plate type lsd guts.
Fit the bearings, check bearing preload, check the backlash, moving the shims around to get the same backlash as you ran with your standard diff, otherwise it will whine...

And bobs your uncle...

Conkers <--- thats all I got to say about that.

[30psi]

Yeah I know how to build a diff, but from when I've seen the other Nissan axles open (H190 for example) they seem pretty different.

How do you know if the crown wheel will bolt on or if the bearing diameter or bearing cap diameter will be the same though? I agree that with shimming the diff you aim for the same backlash, but you also need to check the pinion depth. My point is for average joe bloggs with an s12, doing all this will be a major pain. My advice is to make things easier for yourself and stick with an option i've mentioned previously.

[wacomuk]

Originally Posted by 30psi

They use the same type of CV joints, which is 3 spindle spider assembly type. Can't see how reliability is an issue, because the joints are working exactly as they were originally designed

doesnt the s13 diff use floting joints? (lobro joints)

[30psi]

Na, but I have seen that type on the fwd nissans though.

[Conkers]

Good point...

I suppose for the sort of people who bleed off the wastegate feed to up the boost, fit some neon lights, large rear wing and a shiny gearnob, then a viscous is certainly about as complicated as they want it to be.

But I have also seen a LOT of guys on here building 250-350bhp cars... and those guys would probably want something more serious than a shopping hack viscous diff.
I know the gpN cossies we ran in the WRC had viscous diffs, but they weren't much good either, my Integrale had a viscous centre diff and torsen rear, which made things interesting.... think terminal understeer until she came on boost and then a minimum 4 degree tail out... always kept me awake..

On my 6R4 we have plate diffs front and rear and a viscous centre.... the front is 4FF each side and rear is a 6FF each side and real tight at that... also drove McRaes subaru legacy (oooh about a thousand years ago) and he ran a solid rear diff, viscous centre, and the same 6FF spec as on my 6R4 at the front ! Needless to say, if you weren't committed, it did not want to go around corners.....

Looking forward to trying the welded diff on the s12, although mini roundabouts will be a pain..

Conkers.

[wacomuk]

Originally Posted by 30psi

Na, but I have seen that type on the fwd nissans though.

i bought a s13 LSD to fit to my s12 but decided not to use it as the diff had floating joints which would defiantly compromise the CV joints as the CV joints need constant velocity (CV) to work reliable