Have a set of fender flares I got off of a 2000 extended cab step side f150 trying to figure out if they will fit my 03 supercrew

 

Was it a supercrew you pulled them from?

 

No It was a step side extended cab. .. looks really close

 

Won't work, I've done it. I used step side flares on my Harley supercrew a it flew off on the track. Very embarrassing! "Harley truck losing parts" as the announcer spoke. My truck was stolen so I picked back together.

But that is not the same! Still to this day I don't have a flare on my drive rear.

Front yes, it's the same as expeditions and everything but not the bed. Supercrew flare and ex-cab flare are for sure different!

 

If you already have them put them up to the wheel well and see if they look okay. If so, slap them on there with some double sided tape.