There is no other vehicle with the same hub as our Eagles, but all Eagle hubs are interchangeable. They bolt to a spindle that bridges between the upper and lower ball joints. That spindle changed around 82 and the newer Eagles have totally different calipers and caliper mounting hardware. The changes didn't effect the hub itself, just the part it bolts to.
If you find a newer Eagle in a junkyard, you could just take the entire spindle and hub and swap the whole thing in, replacing everything from ball joint to ball joint. If you do that, you will need the newer caliper as well. While the new spindles are in your hand, I do suggest bringing them to shop and letting them rebuild your wheel bearings. You need a press and its very messy work. My mechanic charges me about 20 bucks in labor per pair, and its well worth it to know you've got fresh bearings.
You will need to use a ball joint puller and remove the entire spindle to get to the bolts, but thats not that big of a deal. Make sure you take the crown nuts all the way off before putting the puller on. I once got royally stuck because I only loosened the crown nuts a few turns before using the puller. Once the spindle popped free, the center post in the ball joint spun freely with the nut. It forced me to destroy the ball joint with grinder.