Hi

I'm looking for some dimensions for JIC RX-8 coilover's rear spring. I'm planning to run the 7kg JIC rear coilover spring on my 2007 MX-5, which shares the same suspension bits as RX-8.

I need to know the bottom ID of the rear coilover spring to see if it will fit my DIY coilover setup. If anyone have it around and won't mind taking a quick measurement for me, that will be very helpful

I'm pretty certain that the free length is 200mm, and top ID matches the stock top hat. It is the bottom ID and OD that i need to know if it will fit over my coilover sleeve. I've heard ID 70mm and JIC website implies ID 62mm. I'm sure you guys can help me out here.

If you upgrade your JIC 7kg rear spring to something higher and don't need it anymore, drop me a PM

Thanks