Long story short I am in need of new suspension. I have an old set of coilovers with good tops and springs I want to swap onto a set of TEIN street advance coil over. I know they are meant to use OEM strut tops but I don't have any and if I can use my old coilover tops and springs that would save me a bit of money.

I need to measure the bottom spring perch on your TEIN STREET ADVANCE coilover.
And last if you can measure the shaft where the mounting nut goes. Need to make sure my tops will bolt okay onto the Teins.