disk

I was wondering if anyone has done this yet. I want to switch to double caliper disk so i can install a hydro e brake.

Hey everyone I dont know if anyone asked this question before but has anyone tried or attempted to put H3 rear disk brakes on a Colly rear end??? I figuared you could because the lug pattern is the same and the rear ends are the same I believe. Has this been done because Im very Anti Drum brakes...