Have you pulled your axles from your jeep, or diassembled the brakes assemblies and such? If you jeep goes into four wheel low, you will definetly know it. The gears are probably 5:38's and the crawl will yank stumps. If the front isn't working and the front shaft is moving, either you don't have any internals, or you don't have any axle shafts. The older jeeps were equipped with bolt on flanges. It was always engaged. The locking hubs are aftermarket. If you need to get new ones, they cost about $100 dollars. Once they are installed, all you have to do is turn the knob to lock, or unlock.
I hoped I helped.
Dan Stewart
1963 CJ5 "Caloosa Jeepers" member
I hoped I helped.
Dan Stewart
1963 CJ5 "Caloosa Jeepers" member