OK here goes. (Big Post)

Parts required. S13 lower control arm, spindle, brakes and outer tie rod ends. A set of S13 coil overs. You will also need another 1200 driver's side inner tie rod end and r31 radius rods.

Redrill your xmember to accept the s13 control arm bolts. The hole at the back of the xmember will be bigger than the front one because of the design of the bolts. When you bolt the arms in you will need to put a small spacer/washer to make them fit as they are slightly slimmer than a 1200 one.

Replace your 1200 passenger side inner tie rod end with your extra drivers side tie rod end. (This is so that the tie rods turn in the correct direction when used in conjunction with the s13 outer ends.) Your 1200 tie rods will need to have the outer thread machined to accept the s13 outer tie rod ends. There is your steering.

The shox will need the 1200 upper spring platform on them so that they can bolt into the top of the strut tower. So just change them with the s13 ones. Easy. The bottom of the shock will go onto your s13 spindle which is already in place.

Your r31 radius rods are next. The two bolts that come with the rods are 8mm from memory and are too small for the s13 control arm. So the holes on the radius rod will need to be drilled to accept 10mm bolts and obviously after doing this you will need to exchange the 8mm bolts for 10mm ones.

All of the above is thanks to Kev Rowley.

The rear coilovers are a little different and can only be done on sedans as their shock towers are straight up and down. Apparently all the others are angled. Corrcet me if I am wrong. Graham at Fulcrum told me that this will only work on cars with a straight up and down tower due tp the strength issue. He apparently did this same sort of setup with Murray Coote back in the 70's with a 120y. I am having to flare and cut a bit of the dust guard for the tower to make the rears fit.

Craig