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I was rotating the tires on my 2017 E350 for the first time (purchased it used) and noticed there is a partial smaller hole and a partial larger hole bored in the front hubs. What are these? I know the rear hub has an alignment pin for mounting the tire, but didn't see any correlation between wheel and holes on the front hub for alignment purposes. I have attached a picture. The E350 chassis is used to for a motorhome if that makes a difference.
help identifying these 2 holes in E350 front hub
