What were the symptoms or you didn't drive on it?Mine did the same thing while my car was in storage during a deployment. Came back to the shock having emptied itself onto the garage floor. Same shock location too.
Only 2 years old and Ford refused to cover it under warranty unless a technician saw the issue and replaced it. Three week waiting period and then who knows how long to get the replacement. Not happening as I needed to drive to California from Texas in 3 days.
I overnighted a replacement from JEGS for like $230 and replaced it in 30 minutes. Extremely easy to replace. Ford still refused to refund me after I brought the leaky shock to them. Built Ford Proud.......