https://www.montanaowners.com/forums...ad.php?t=84764
CalandLinda mentioned the DOT manufacturer code 1YJ
SHANDONG HUATAI TYRE CO., LTD. - CHINA
And the tire has made in Vietnam stamped on it. Perhaps these are knock offs?
Has been known to happen.
All the more reason to report it and DOT investigate this.
BTW, The new one I put on is 1YJ. Date code 4920 Made in Vietnam.