As per title.

Currently have a fox transfer factory, its too short for my likings
I want a circa 200mm drop.

Brand x v2 come well reviewed? Spending more seems to gain nothing other than bling. If fox did a 200 id have that, alas they don’t.

Do I need a new lever?
Or will the fox one work fine and simply swap the post over?
Its the set up as stock on a yt jeffsy if relevant!

Thanks in advance!

Yeah should be fine. Not familiar with the fox lever but the brand x can be used either with the little grub screw fitting or just with the head of a gear cable in the actuator. No bother.

Yes. It works.