Front axle spindle nut keeps backing off???
79 CJ-7, stock d-30 front axle, manual hubs. Started getting a popping noise in my steering after a 4" lift and 33's. I found the spindle nut was almost completely off on both sides. I changed the inner and outer bearings on both sides. Replaced everything that came out and snugged the nut back down (not too tight of course). About a week later (today) I checked and I can already wiggle both wheels a little like the nut is backing off again. When I put it back together the first time I scored the last thread on the nut with an awl because I didn't see a lock washer or snap ring or anything to keep it from backing off. Is there supposed to be? Should I be using lock tite? Are the bigger tires causeing this? Is there a bigger problem causing this that I should be looking for?
Thanks for the help