I think the grease zerk was knocked off by hitting the exhaust.on page 5 you can see a dent in the tie rod end and a good size dent in the exhaust pipe so its hitting pretty hard.Unless the tierod ends is about to pop out and is so loose its lifting up in a turn I don't feel it's that.This whole issue was with the steering box loose so I think once that issue is fixed we will be able see if that fixed it or move to another possiblity.I feel it's more aliegnment than parts but thats just my opinion from 600 miles away at a computer screen.I'd love to look at this thing in person.