Don't waste your time on this kit, go direct to Ford and get an OEM. I was installing this kit on a customer's truck and there was a burr in the stc fitting that I had to file off. Installed with new o-rings and after a week the STC matching o-ring burst. I don't know if the o-ring was too thick or if the bolts in this kit stretched, but the washer next to the nut on this fitting is too big and the o-ring actually pushed halfway through the washer . although it was twisted. Also, the new screen for IPR was so loose that I had to reuse the old one. Should have bought an OEM to start with and didn't have to do any more work