Our 2015 ACE 30.1 did not have such a sticker either and when bringing it home I was not real happy with the handling. When I called Thor I was told they would pay for the alignment if it was out of spec. Everything was within spec but just near the limits. I had this done at a local well known heavy truck center. They went ahead and adjusted toe into the middle of the range. This did help the handling but not as much as I would have liked. I also read somewhere that after 3,000 to 5,000 miles on the tires (GY) they get more stable. I did notice things seemed better after about 2,500 miles so maybe the tires or just getting used to our first MH. I do think about a rear track bar and may do that in the future. Jim.
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