There’s no way I would pay for a disk conversion that reuses the 9” drum spindle. Not a chance.
Undersized wheel bearings, undersized lower ball joint to spindle bolts, both of which had plenty of failures. Nope.
Especially not when you can get a 73+ mopar disk conversion with the spindles for less than the wilwood kit. Can’t run the stock drum wheels with the wilwood kit anyway.