Need a E-Brake

You didnt say if it is a 9 inch or the 8.8 ford, the 8.8 isnt a big deal, the nine inch is a different story...the easy and cheap way would be to go back to rear drum brakes on the nine inch. I havent seen a parking brake assembly for a 9 inch narrowed axle with disc s ,maybe some one else on this site has.... I am sure they will join in .... good luck.... Ron