I'm needing some input as to what all is needed for the parking brake to function properly after installing the new retrofit brackets from https://www.mustangsteve.com/cobrabrakeshtml/ and calipers on my 9in. It came from factory with disc brakes (Lincoln Versailles) mounted. I've seen you're supposed to hack the handle up on the spring area and what not?!?! Hoping someone else has already done this and give some insight.