They are not the same coilovers Andy, JZX110/JCE10/SXE10 rear coilovers are not the same as JZX90/100. I believe it's a similar story to S13 coilovers with S14/15 - the rears are meant to be much taller on the newer ones.
Thanks for that. I must have been given the wrong info. I was told they can be used but jzx100 top mounts are needed for the rears.
When I sold my JZX100 at the end of last year I put the suspension back to standard. I used JZX90 shocks and springs but had to source top mounts. The rear top mount part number I used was: 48755-30040 - take a look for yourself. I might be wrong, this was ten months ago and I can't even remember what I did yesterday. It could just be the top mount PCD afterall.