I’ve been working on a ‘53 one ton pickup for years, and it’s getting closer. I had another one years ago, and it was very poor off road. We have a farm, so this one is going to be used (carefully) off the pavement. I was thinking of adding a posi traction unit to help. I understand there are some factory Eaton “no spin” lockers out there, but they are hard to find. I’ve also heard a 14 bolt locker will fit in, and I can use 14 bolt axles instead of my old ones. Has anyone done this? Was it worth the effort?