Is there a trick to disconnecting the brake hose tee from the hardlines on top of the rear end? Hard to see and get at from under the car and it's a rusty connection. Rather than fuss with it, should I just cut the lines since I'm doing a 10 to 12 bolt rear end swap and will need new brake lines, tee and hose retainer bracket for the 12 bolt anyway? I've already taken off the rear brakes and am getting ready to drop the 10 bolt out.