I wanted to post on here and see if I can get any pointers. I believe it is my birfield joints that pop in 4 low at full lock left or right. Took the square bolt out of the top of the knuckle on both sides and started greasing. They clear up but eventually always start popping again. They do not leak grease. About to go on a six hour trip so I wanted to get some info from all of the professionals. Thanks fellas.