What year did ford make an F150 Superduty and also a PRODUCTION lifted superduty truck?

I remember when i was a little younger and my mom was getting a new car we went to the ford dealer ship and there were 3 lifted trucks there all brand new one was an f150 superduty (Lifted) and then 2 F250 (also lifted). Anyone know what year they did this?|||The lifts were probably done by the dealer. There was no F-150 Superduty, and no trucks came from the factory with a lift.