what thread are coilover tubes ?

[alladdin]

as title, does anyone know what thread is used on the commonly available 2.25" diy coil over conversion kits?

[Miniliteman]

Bilstein uses M52 x 1.5 but don't know if other manufacturers use the same.

[alladdin]

i was thinking more rally design tubes tbh but may well be same

[rallyrob]

I would think they're bigger than that, aren't they?

I mean the conversation sleeve fits over the top of the normal tube size doesn't it, so they're already a larger external diameter than M52 aren't they?

Maybe M54 or something like that maybe?

I don't know I'm just guessing though really.

[alladdin]

i think tube is 51 and thread cuts almost through the thin tube so sounds about right to me. im thinking of going adjustable but keeping the 5 1/4 springs but will need to go DIY i think to keep std spring seats. steel lock rings in steel at 52 are available i see.