I need help. I replaced front driver side axel last night. Test drove after. Worked fine for 50 feet then let go. Makes rumbling sound and wouldn't move. Put in 4wd and drove it back. Not a stripped hub. Axels not turning when stoped. When in nuteral driver side axel shakes and makes rumble sound from stub area. I'm worried the tranny is toast. Any suggestions? It's a 84 gl 4wd 4 speed dual range. Thanks.