5 Stud Hub Conversion
 

Have been wondering this since i bought my s12. Has anyone done a 5 stud conversion on their s12? As far as i know from reading on Club-s12 and a few other places, to do a 5 stud conversion:

Find a 300zx z31 and take the complete rear swing arms complete with hubs and all as apparently they are a straight swap with s12's
Use s14 rack ends, tie-rod ends, lower control arms, s13 coilovers, s14 hubs, and r31 castor rods

Can anyone shed any light on this?

http://img.photobucket.com/albums/v2...ingarms445.jpg

i've got the z31 rear arms, they are a straight swap other than the shafts.

I have;
S13 lower control arms (LCAs), Steering arms & Rod Ends and Driftworks adjustable Tenson Rods.
S14 Hubs & Tension Rod Brackets
Z32 Twin Turbo Calipers, Pads and Discs.
BC S12 Coilovers

Rod Ends may not be right fo the S14 knuckles as I haven't tried them yet.
Either way mate the LCA with it's native steering arm.
That gives a wider front track, full geometry adjustment with a better "baseline" geometry and better brakes with the possability of further brake upgrades.

The rear on mine is a mix of Z31 and S12. It'll be a shitzillion times easier if you can find a complete Z31 set-up, either NA or Turbo.

What about the front of the Z31's are they straight swap to the s12 or am i looking at the setup from an s13?
Sorry to sound so noobish but i've read about several different setups and want to get a definitive setup that i can go for without having to faff about

Oh and btw i know a place that has 2 or 3 complete z31s' that he has had parked up for atleast 3 or 4 years. I'm going to ask if he might break one:p

ask if he'll break both and i'll pop up with ya :P

hehe will do!

Don't know about the Z31 front. I think I read on clubs12 it does but I've never looked into it.

i'am sure it does, kennyboy on hear would confirm this, his mate wayne scofield from chip wizards, he had a notch back fj20 s12, that was 5 stud front and rear, i think that he used z31 stuff.

I've got a complete rear beam with 5 stud trailing arms and front hubs FS

How much mate to give me an idea?

5 stud conversion
 

Shaun is correct , 5 stud front is not a bad conversion to do , Z31 obvious route to take and rear arms etc.:)

Hi guys quick bump as I have some issues and reflections. Having done the Z31 rear and a mis-mash of S13 and S14 front & BC Coilovers I'm come to the conclusion that it's more trouble than it's worth. With S13 lower arms I had nearly 4' -ve camber with the BC top mounts maxxed out. With them set at their zero point it was 7' -ve. I'd estimate 10' -ve set fully negative (which would have been fun to see).
There was something like 70mm difference in track, with the front being the wider.

With S12 LCAs I have < 2' -ve one side and 3' -ve the other as a minimum, which I've put down to moody replacement arms or balljoints.
With the S12LCAs and 20mm spacers on the rear the track difference is down to about 20mm IIRC.

Also the wheel arches barely contain the front wheels, even with "weak" OEM S14 wheels. The rears look about normal but, with the front track exaggerated, they look lost in the arch. None of which is the end of the world but I wanted my car to be right. I imagine as a drifter it would work, though.
If I had to keep the coilover set-up I'd either try to find shorter-than-S12 arms, like R31 skyline, or elongate the lower arm -> subframe holes 10mm or so and shunt the arm mounts further in, same as the camber adjusters on S-type jags.

I'm either gonna sell the car as a unfinished project or sell the coilovers and S14 hubs and revert to stock hub/leg. That means trying to find either Z31 front, which I hope will work but not common, or OEM S12 which will fit but don't actually appear to exist anywhere....

never seen the point in the 5 stud conversion myself.my car handled and breaked fantastic on std size grooved discs and decent pads. the suspension was just koni direct replacement with custom 35mm lowering springs and 15x8 and 15x9 wheels

like you say. sounds like more trouble than its worth.

i've done it because i got the early z31 with the 304mm vented rear discs and the z31 arms sit 10mm further out,then i don't have to depend on spacers, i'll just get some wheels made up from image to fill up the gp arches.

Are you sure they'll widen the rear track ? I don't think mine has.

according to most posts i found the other year it said the early z31's had a 10mm wider track and bigger disc's.

Turned out my rear is an earlier 5-stud (so midlife overall) NA. Maybe just the Turbos with the wider track ?
I also did the front to match the rear and I wanted coilovers and Z32 brakes.

well the internet throws up allsorts of measurments, 1984 1430mm, 1988 1435mm or 1475mm silvia 1420mm, so god knows whats right lol.:confused:

I measured my rear track last time around. I'll try toremember and have a look at the print out when I'm back ion work Tuesday.

Northerner you haven't still got the front suspension off of your Z31 by any chance have you ?

I sold the 84 stuff but am replacing the front stuff on my 88 project so will have it available. You can have the front lower arms, hubs, legs, twin pot calipers/discs etc for £60.

Sickening. What can I come gets ? :D

PM'd you