I did a quick search at NAPA PROLink for 1955 Willys... I logged in and found one Cleveland joint. It is the two bolt style. Part#NPJ P476 that has a List Price of $66.44, and my cost would be $48.95. They show 0 in stock, but since they are listed, there is a good chance they can get them. No luck looking for the 1 bolt Clevelands. Just for reference, I can get one with clips for as low as $11.21.... THAT said, I learned a long time ago to go with Spicer joints on all my trucks. Nothing lasts longer at least for me. I had bad luck with Precision, and TRW. As long as we are on the subject, I have a 4" x 6" card I keep in the glove box of my truck with part numbers and brands for belts, hoses, U joints, bearings, thermostat, cap, rotor, plugs, etc. That way I KNOW what will fit. Sometimes there is more than one part number, and you need to figure out which one it is that works for you, so this way, I can call around and make SURE they have a part that will work for me when I am stranded. Probably not that common, but when I called up for front wheel bearings in my 77 Chevy, they sent three sets, and told me to send back the two that did not fit!
~Chuck