UPDATE: Bill contributed a couple pics of the Kelly hubs on his jeep.
I ran across this brochure the other day and purchased it. I’d never heard of Kelly hubs. The picture on the brochure isn’t the best for identifying them. I found some pictures of them at the early CJ-5 site (see the bottom pic):
http://www.earlycj5.net/forums/showthread.php?64813-hub-id
Buz’s hubs






The wording makes you think that they are self engaging like it has some sort of mechanism that senses axle torque, but it looks like you still have to manually turn the hub. There is an asterisck next to the ‘Automatic Engaging’. If you read the note, it says in the “in” position, the hub automatically engages the axle.
How is that any different than any other manual hub?
I have a set on my truck. They are spring loaded and when the axle turns they engage. Unfortunetly one of mine is worn and doesn’t engage properly. They really are simple and well built.
They look like they are taller and stick out more than typical locking hubs. I’d be concerned of catching them on objects, starting with my shins.
I have a set on my 1950 CJ3A, they work great, easy to lock, but I have to manually lock them to get the front axle to pull. I emailed some photos to Dave, maybe he’ll post them.