I guess I'll try Napa. I went to O'Reilly's and AutoZone, and they could not find it in their computers. I also tried Amazon but with no definitive this fits your truck results.
I have the same problem with my 2021 F150 3.5. I sprayed the belt as a temp fix and it went away for the most part. I want to change the belts but can't find the stretch fit AC belt. Anyone know what part fits that? Also, why is the stretch fit in front of the main belt? All the videos on how to...