I bet I've put a half dozen Mustang IFS units in and never had this problem . I got the 2" drop spindles so I could get the car lower and not loose suspension (ride) but seems stock disc brake hoses can't be used . I'm sure there is a hose that works but I'm not having much luck. The guy at the parts store is usualy good at this but not this time. Since you guys have done the drop s before you must know the answer. RIGHT?