To me, the way the thread is worded, the OP wants to know what COMPANY produces the JD labeled filters. Kinda like asking who makes Craftsman branded lawn tractor filters...I would like to know myself who makes certain brands.
Bart. I have a few of those MotorCraft FL-1's myself, those things are huge compared to most filters. My Buick uses an AC Delco that is maybe a third of the size of the FL-1. I have never understood why car makers put such tiny oil filters on some engines, to me a bigger filter and the oil it holds are well worth the extrs weight and size. I used to buy AC Delco filters for my GMC, the number was PF-59 and about 5 years ago they cut the size of the filter case about 40% for that part number. I quit buying them then. Penny pinching, IMO.