Ok new short shaft is perfect length it seems, u joint is correct width for axle, but bearings are not big enough diameter to fill yoke and straps properly. I know this is no surprise, I just wish I could identify yoke sizes more easily. Sizes don't seem to be stamped anywhere so I don't really know what I even need to come up with as far as conversion joints and stuff goes. 447 joint? no idea what that actually means, and this is just the back half. not sure if I'm going to need another 447 to adapt the forward shaft to my slip yoke. ideally, and again this isn't new to anybody but me, I'd like to end up with a setup that I could just hook up to whatever size my slip yoke is on my 32spl 208, and have it drop in to whatever the Ujoint size is on my 70. I'd have to have the baby front shaft custom made either way, but having an off the shelf back shaft would be a huge plus to me.