S12OC UK Forum - Z31 rear conversion

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S12OC UK Forum (http://nissansilvia.co.uk//index.php)

- How-To section (http://nissansilvia.co.uk//forumdisplay.php?f=6)

- - Z31 rear conversion (http://nissansilvia.co.uk//showthread.php?t=4783)

s13eater

24-08-2010 22:28

Quote:

Originally Posted by CamInHead (Post 35442)

fookin hope so. I sat on that thing for 6 months then see this less than a week after actually comitting some proper monies to my "project" lol (maybe). I'm 99% sure I've seen posts before that say they're identical.

how does your turbo subframe compaire to S12 regular ? I've never actually gotten a good look at the two together.

i'll put it under 2moz mate and let you know.:)

CamInHead

21-03-2011 15:18

Quote:

Originally Posted by s13eater (Post 35360)

i've got hold of a z31 turbo rear subframe and trailing arms, only thing that ive noticed is that where the shafts mount to the back of the hub they are 4 bolt instead of the s12 6 bolt set up, are the shafts the same spline set up as the s12 ones ?if so i could just change the ends.

I've just pulled my N/S S12 half-shaft and trailing arm off and the hubs are different. Stock S12 has 6stud 3x2 but my Z31s are 4x1, same as yours. Also, the input shaft (diff end) is slightly larger and the (spider?) bearing is totally different.
So I'm a bit lost right now.

Can someone confirm a stock UK Turbo comes with the R200 diff ?

s13eater

21-03-2011 16:31

Quote:

Originally Posted by CamInHead (Post 36784)

just measured the z31 and s12 shafts matey, they both measure 29.5mm and are 29 spline;) and the s12 is a r200 diff.

CamInHead

21-03-2011 16:33

Quote:

Originally Posted by s13eater (Post 36786)

just measured the z31 and s12 shafts matey, they both measure 29.5mm and are 29 spline;) and the s12 is a r200 diff.

We tried to swap over the driveshaft bearing at the diff end and the Z31 input shaft is just slightly too wide to accept the stock S12 bearing ?
Granted I don't have a vernier to measure it though.

edit: did you notice the Z31 has symmetrical driveshafts too ?

s13eater

21-03-2011 16:35

Quote:

Originally Posted by CamInHead (Post 36787)

We tried to swap over the driveshaft bearing at the diff end and the input shaft is just slightly too large ?
Granted I don't have a vernier to measure it though.

edit: did you notice the Z31 has symmetrical driveshafts too ?

i'am going to strip um down now, you got me worried.

CamInHead

21-03-2011 16:41

Shaun where's that picture you put-up of your z31 sub assembley ?

s13eater

21-03-2011 16:46

on second thoughts i got them out and put all six shafts back, i don't think i can get my head round it until i've put the plenum back on and got it mapped.:(

CamInHead

21-03-2011 18:37

Well I've done some digging and the 4-stud shaft is a "Double Offset Birfield" type" and the 6-stud is the "Tripod-Tripod" type. Other than the name I have no informatin on one or the other. However, the companion flange in the suspension arm looks to be specific to the driveshaft and the part is listed in the various US nissan parts websites. Looks like the s12 was only ever the T-T type.

http://i102.photobucket.com/albums/m...Y/HPIM1948.jpg

http://i102.photobucket.com/albums/m...Y/HPIM1951.jpg

CamInHead

21-03-2011 20:52

ebay has thrown up an open turbo diff which will match with my driveshafts for £95 shipped. I always thought Turbos were LSD type ? Either case that may be my best bet.

s13eater

21-03-2011 20:56

Quote:

Originally Posted by CamInHead (Post 36793)

ebay has thrown up an open turbo diff which will match with my driveshafts for £95 shipped. I always thought Turbos were LSD type ? Either case that may be my best bet.

hows draconis done it?

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