Steer tire wearing oddly (pictures in thread)

You need a jack, a 6 ton bottle jack will work. You jack up one side at a time. Use a big pry bar and place it under the tire and pull up. You should have barely any movement if any. Fyi greasing every 12k to 20k is not enough. I grease my truck every 2 weeks.

 

Try more air. 110 on the left, 112 on the right.

 

I had the exact same issue, with my Goodyear LHS Marathon tires. I had a bad tie rod assembly, alignment was off, and the tires were severely out of balance. I also replaced the front shocks (rear shocks were replaced before). Just got a new pair of Endurance steers and so far no issues.
If you go to have them balanced, make sure the numb nuts remove the old weights. My passenger tire was wearing worse than yours in the pic here, and had 23 ounces of weights. 12 of those were those balancing beads that were inside the tire. The shop that put the new steers on said whoever balanced them before was a retard because they were basically chasing it trying to balance and pretty much just gave up on it.

Edit: I did have one shop check kingpins some wonky way. Jacked up the front and put a bar through the top hole of the aluminum wheel, with the pry bar going over the brake drum, and he lifted it and said the kingpins were loose. 2 other shops checked it, one prior to this and one after and both of them said they were fine. This is when it was discovered ultimately that the tie rod assembly was bad.

 

IMHO I wouldn't think it's the King Pins, when I had my issue and the Toe was way off, I had the King Pins checked then with 650k and they were fine, still good now with 777k.

 

If your running at 11000 or higher on steers, you should be looking at G and H load rated tires.
These tire ratings would be running 110 psi.

 

that's typical for goodyear steer tires . goodyear calls it river ware ,it's normal according to their sales rep. i was only getting 70000 miles out of them. went to Michelins and now getting 230000 miles out of them

 

Goodyear bag of ####, every set I’ve ever seen wears like that, Michelin price tag with Chinese quality