I looked at the Wilwood website and believe you have two options but I would recommend you check with them to be sure. I do not see ANY option where Wilwood systems will work with your KH spindles.
Option 1: Wilwood Front Brake Kit Part No.: 140-11023-DR. You would need to get a 10 inch drum brake spindle from 65 to 72 car. These are small ball joint spindles. You can use your existing upper control arms that are small ball joint also.
Option 2: Wilwood Brake Kit #140-11019. You would need to get a disc brake spindle from a 73 to 76 A body or a later FMJ body. You would also have to replace your upper A arms on your 68 cuda to a big ball ball joint arms from a 73 to 76 A body or use one of Dr Diffs small to big ball joint adapter sleeves.
